P
1: a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several al...
p-n junction
1: the junction between a p-type semiconductor and an n-type semiconductor; "a p-n junction has marked rectifying characteristics"
p-n-p transistor
1: a junction transistor having an n-type semiconductor between a p-type semiconductor that serves as an emitter and a p-type semiconductor that serves as a collector
p-type semiconductor
1: a semiconductor in which electrical conduction is due chiefly to the movement of positive holes
P. G. Wodehouse
1: English writer known for his humorous novels and stories (1881-1975) [syn: {Wodehouse}, {Pelham Grenville Wodehouse}]
P. P. von Mauser
1: German arms manufacturer and inventor of a repeating rifle and pistol (1838-1914) [syn: {Mauser}, {von Mauser}, {Peter Paul Mauser}]
P. T. Barnum
1: United States showman who popularized the circus (1810-1891) [syn: {Barnum}, {Phineas Taylor Barnum}]
P.A.
1: an electronic amplification system used as a communication system in public areas [syn: {public address system}, {P.A. system}, {PA system}, {PA}] adv : by the year; every year (usually with refere...
P.A. system
1: an electronic amplification system used as a communication system in public areas [syn: {public address system}, {PA system}, {P.A.}, {PA}]
P.E.
1: the mechanical energy that a body has by virtue of its position; stored energy [syn: {potential energy}]
p.m.
1: after noon [syn: {post meridiem}, {pm}] adv : between noon and midnight; "let's meet at 8 P.M." [syn: {post meridiem}, {PM}]
P.O.
1: a noncommissioned officer in the navy with a rank comparable to sergeant in the army [syn: {petty officer}, {PO}]
P/E ratio
1: (stock market) the price of a stock divided by its earnings [syn: {price-to-earnings ratio}]
pa
1: an informal term for a father; probably derived from baby talk [syn: {dad}, {dada}, {daddy}, {papa}, {pappa}, {pater}, {pop}] 2: a short-lived radioactive metallic element formed from uranium and d...
PA system
1: an electronic amplification system used as a communication system in public areas [syn: {public address system}, {P.A. system}, {P.A.}, {PA}]
pa'anga
1: the basic unit of money in Tonga
PABA
1: a metabolic acid found in yeast and liver cells; used to make dyes and drugs and sunblockers [syn: {para aminobenzoic acid}]
Pabir
1: a Chadic language spoken south of Lake Chad [syn: {Bura}]
Pablo Casals
1: an outstanding Spanish cellist noted for his interpretation of Bach's cello suites (1876-1973) [syn: {Casals}]
Pablo Neruda
1: Chilean poet (1904-1973) [syn: {Neruda}, {Reyes}, {Neftali Ricardo Reyes}]
Pablo Picasso
1: prolific and influential Spanish artist who lived in France (1881-1973) [syn: {Picasso}]
Pablum
1: a soft form of cereal for infants 2: worthless or oversimplified ideas [syn: {pap}]
pabulum
1: any substance that can be used as food [syn: {comestible}, {edible}, {eatable}, {victual}, {victuals}] 2: insipid intellectual nourishment
PAC
1: committee formed by a special-interest group to raise money for their favorite political candidates [syn: {political action committee}]
pac-man strategy
1: the target company defends itself by threatening to take over its acquirer
paca
1: large burrowing rodent of South America and Central America; highly esteemed as food [syn: {Cuniculus paca}]
pace
1: the rate of moving (especially walking or running) [syn: {gait}] 2: the distance covered by a step; "he stepped off ten paces from the old tree and began to dig" [syn: {footstep}, {step}, {stride}]...
pace car
1: a high-performance car that leads a parade of competing cars through the pace lap and then pulls off the course
pace lap
1: the first lap of a car race that prepares the cars for a fast start
pacemaker
1: a leading instance in its field; "the new policy will be a pacesetter in community relations" [syn: {pacesetter}] 2: a specialized bit of heart tissue that controls the heartbeat [syn: {cardiac pac...
pacer
1: a horse used to set the pace in racing [syn: {pacemaker}, {pacesetter}] 2: a horse trained to a special gait in which both feet on one side leave the ground together
pacesetter
1: a leading instance in its field; "the new policy will be a pacesetter in community relations" [syn: {pacemaker}] 2: a horse used to set the pace in racing [syn: {pacer}, {pacemaker}]
pacha
1: a civil or military authority in Turkey or Egypt [syn: {pasha}]
pachinko
1: a Japanese pinball game played on a vertical board
pachisi
1: an ancient board game resembling backgammon; played on a cross-shaped board
pachouli
1: small East Indian shrubby mint; fragrant oil from its leaves is used in perfumes [syn: {patchouli}, {patchouly}, {Pogostemon cablin}] 2: a heavy perfume made from the patchouli plant [syn: {patchou...
pachuco
1: a Mexican-American teenager who belongs to a neighborhood gang and who dresses in showy clothes
Pachycephala
1: arboreal insectivorous birds [syn: {genus Pachycephala}]
pachycephalosaur
1: bipedal herbivore having 10 inches of bone atop its head; largest bone-headed dinosaur ever found [syn: {pachycephalosaurus}]
pachycephalosaurus
1: bipedal herbivore having 10 inches of bone atop its head; largest bone-headed dinosaur ever found [syn: {pachycephalosaur}]
pachyderm
1: any of various nonruminant hoofed mammals having very thick skin: elephant; rhinoceros; hippopotamus
pachyderma
1: thickening of the skin (usually unilateral on an extremity) caused by congenital enlargement of lymph vessel and lymph vessel obstruction [syn: {nevoid elephantiasis}]
pachydermal
1: of or relating to or characteristic of pachyderms [syn: {pachydermatous}, {pachydermic}, {pachydermous}]
pachydermatous
1: of or relating to or characteristic of pachyderms [syn: {pachydermal}, {pachydermic}, {pachydermous}] 2: emotionally hardened; "a callous indifference to suffering"; "cold-blooded and indurate to p...
pachydermic
1: of or relating to or characteristic of pachyderms [syn: {pachydermatous}, {pachydermal}, {pachydermous}]
pachydermous
1: of or relating to or characteristic of pachyderms [syn: {pachydermatous}, {pachydermal}, {pachydermic}]
Pachyrhizus
1: small genus of tropical vines having tuberous roots [syn: {genus Pachyrhizus}]
Pachyrhizus erosus
1: Central American twining plant with edible roots and pods; large tubers are eaten raw or cooked especially when young and young pods must be thoroughly cooked; pods and seeds also yield rotenone an...
Pachyrhizus tuberosus
1: twining plant of Amazon basin having large edible roots [syn: {yam bean}, {potato bean}]
pachysandra
1: any plant of the genus Pachysandra; low-growing evergreen herbs or subshrubs having dentate leaves and used as ground cover
Pachysandra procumbens
1: low semi-evergreen perennial herb having small spikes of white or pinkish flowers; native to southern United States but grown elsewhere [syn: {Allegheny spurge}, {Allegheny mountain spurge}]
Pachysandra terminalis
1: slow-growing Japanese evergreen subshrub having terminal spikes of white flowers; grown as a ground cover [syn: {Japanese spurge}]
pachytene
1: the third stage of the prophase of meiosis
pacific
1: promoting peace; "the result of this pacific policy was that no troops were called up" 2: relating to or bordering the Pacific Ocean; "Pacific islands" 3: disposed to peace or of a peaceful nature;...
Pacific bonito
1: probably a northern strain of Chile bonito [syn: {Sarda lineolata}]
Pacific cod
1: closely related to Atlantic cod [syn: {Alaska cod}, {Gadus macrocephalus}]
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Pacific halibut
1: a righteye flounder found in the Pacific [syn: {Hippoglossus stenolepsis}]
Pacific hemlock
1: tall evergreen of western North America; commercially important timber tree [syn: {western hemlock}, {west coast hemlock}, {Tsuga heterophylla}]
Pacific herring
1: important food fish of the northern Pacific [syn: {Clupea harengus pallasii}]
Pacific newt
1: any of several rough-skinned newts found in western North America
Pacific Northwest
1: a region of the northwestern United States usually including Wshington and Oregon and sometimes southwestern British Columbia
Pacific plum
1: shrub of the Pacific coast of the United States bearing small red insipid fruit [syn: {Sierra plum}, {Prunus subcordata}]
Pacific ridley
1: olive-colored sea turtle of tropical Pacific and Indian and the southern Atlantic oceans [syn: {olive ridley}, {Lepidochelys olivacea}]
Pacific sardine
1: small pilchards common off the pacific coast of North America [syn: {Sardinops caerulea}]
Pacific silver fir
1: medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed [syn: {amabilis fir}, {white fir}, {red silver fir}, {Christmas tree}, {A...
Pacific Standard Time
1: standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States [syn: {Pacific Time}, {PST}]
Pacific sturgeon
1: food and game fish of marine and fresh waters of northwestern coast of North America [syn: {white sturgeon}, {Sacramento sturgeon}, {Acipenser transmontanus}]
Pacific Time
1: standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States [syn: {Pacific Standard Time}, {PST}]
Pacific tree toad
1: most commonly heard frog on the Pacific coast of America [syn: {Hyla regilla}]
Pacific walrus
1: a walrus of the Bering Sea and northern Pacific [syn: {Odobenus divergens}]
Pacific yew
1: small or medium irregularly branched tree of the Pacific coast of North America; yields fine hard close-grained wood [syn: {California yew}, {western yew}, {Taxus brevifolia}]
pacifically
1: in a peaceable manner; "the tenant paying the rent hereby reserved and performing the several covenants herein on his part contained shall peaceably hold and enjoy the demised premises" [syn: {peac...
pacification
1: the act of appeasing someone or causing someone to be more favorably inclined; "a wonderful skill in the pacification of crying infants"; "his unsuccessful mollification of the mob" [syn: {mollific...
pacificist
1: someone opposed to violence as a means of settling disputes [syn: {pacifist}, {disarmer}]
pacifier
1: someone who tries to bring peace [syn: {conciliator}, {make-peace}, {peacemaker}, {reconciler}] 2: device used for an infant to suck or bite on [syn: {comforter}, {baby's dummy}, {teething ring}]
pacifism
1: the doctrine that all violence in unjustifiable [syn: {passivism}] 2: the belief that all international disputes can be settled by arbitration
pacifist
1: opposed to war [syn: {pacifist(a)}, {pacifistic}, {dovish}] n : someone opposed to violence as a means of settling disputes [syn: {pacificist}, {disarmer}]
pacifistic
1: opposed to war [syn: {pacifist(a)}, {dovish}]
pacifistically
1: in a pacifistic manner; "the pacifistically inclined liberals"
pacify
1: cause to be more favorably inclined; gain the good will of; "She managed to mollify the angry customer" [syn: {lenify}, {conciliate}, {assuage}, {appease}, {mollify}, {placate}, {gentle}, {gruntle}...
pacifying
1: freeing from fear and anxiety [syn: {assuasive}, {calming}, {soothing}]
pacing
1: (music) the speed at which a composition is to be played [syn: {tempo}] 2: walking with slow regular strides
Pacinian corpuscle
1: a specialized bulblike nerve ending located in the subcutaneous tissue of the skin; occurs abundantly in the skin of palms and soles and joints and genitals
pack
1: a large indefinite number; "a battalion of ants"; "a multitude of TV antennas"; "a plurality of religions" [syn: {battalion}, {large number}, {multitude}, {plurality}] 2: a complete collection of s...
pack animal
1: an animal such as a mule or burro or horse used to carry loads [syn: {sumpter}]
pack ice
1: a large expanse of floating ice [syn: {Ice pack}]
pack of cards
1: a pack of 52 playing cards [syn: {deck of cards}, {deck}]
pack on
1: gain (weight); "He packed on two pounds over the summer"
pack rat
1: someone who collects things that have been discarded by others [syn: {magpie}, {scavenger}] 2: any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and oth...
pack tent
1: a tent that can be carried in a backpack [syn: {backpacking tent}]
pack together
1: make more compact by or as if by pressing; "compress the data" [syn: {compress}, {compact}] [ant: {decompress}]
package
1: a collection of things wrapped or boxed together [syn: {bundle}, {packet}, {parcel}] 2: a wrapped container [syn: {parcel}] 3: (computer science) written programs or procedures or rules and associa...
package bomb
1: a thin explosive device inside an envelope or package and detonated when opened [syn: {letter bomb}, {parcel bomb}]
package holiday
1: a tour arranged by a travel agent; transportation and food and lodging are all provided at an inclusive price [syn: {package tour}]
package store
1: a store that sells alcoholic beverages for consumption elsewhere [syn: {liquor store}, {off-licence}]
package tour
1: a tour arranged by a travel agent; transportation and food and lodging are all provided at an inclusive price [syn: {package holiday}]
packaged
1: enclosed in a package or protective covering; "packaged cereals" [ant: {unpackaged}]
packaging
1: the business of packaging; "the packaging of new ideas"; "packaging for transport" 2: a message issued in behalf of some product or cause or idea or person or institution [syn: {promotion}, {public...
packaging company
1: a company that packages goods for sale or shipment or storage [syn: {packaging concern}]
packaging concern
1: a company that packages goods for sale or shipment or storage [syn: {packaging company}]
packed
1: filled to capacity; "a suitcase jammed with dirty clothes"; "stands jam-packed with fans"; "a packed theater" [syn: {jammed}, {jam-pawncked}] 2: pressed together or compressed; "packed snow"
packed cell volume
1: the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit [syn: {hematocrit}, {haematocrit}]
packed cells
1: a preparation of blood cells separated from the liquid plasma; "packed cells are given to severely anemic patients in order to avoid overloading the circulatory system with too much fluid"
packer
1: a workman employed to pack things into containers [syn: {bagger}, {boxer}] 2: a wholesaler in the meat-packing business [syn: {meat packer}] 3: a hiker who wears a backpack [syn: {backpacker}]
Packera
1: genus of American of east Asian perennial herbs with yellow to orange or red flower rays; sometimes included in genus Senecio [syn: {genus Packera}]
Packera aurea
1: weedy herb of the eastern United States to Texas having golden-yellow flowers; sometimes becomes invasive; sometimes placed in genus Senecio [syn: {golden groundsel}, {golden ragwort}, {Senecio aur...
packet
1: a collection of things wrapped or boxed together [syn: {package}, {bundle}, {parcel}] 2: (computer science) a message or message fragment 3: a small package or bundle 4: a boat for carrying mail [s...
packet boat
1: a boat for carrying mail [syn: {mailboat}, {mail boat}, {packet}]
packhorse
1: a workhorse used as a pack animal
packing
1: any material used especially to protect something [syn: {packing material}, {wadding}] 2: the enclosure of something in a package or box [syn: {boxing}] 3: carrying something in a pack on the back;...
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