Glossary · MWE Terms · P
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TermTypeDefinitionClassificationsUpdated
Pulling OutnounMWEa method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculationverified
Pulmonary AnthraxnounMWEa form of anthrax infection acquired by inhalation of dust containing Bacillus anthracisverified
Pulmonary ArterynounMWEone of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungsverified
Pulmonary EmbolismnounMWEblockage of the pulmonary artery by foreign matter or by a blood clotverified
Pulmonary EmphysemanounMWEan abnormal condition of the lungs marked by decreased respiratory functionverified
Pulmonary ReservenounMWEthe additional volume of air that the lungs can inhale and exhale when breathing to the limit of capacity in times of stressverified
Pulmonary StenosisnounMWEabnormal narrowing of the opening into the pulmonary artery from the right ventricleverified
Pulmonary TrunknounMWEthe artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteriesverified
Pulmonary ValvenounMWEa semilunar valve between the right ventricle and the pulmonary arteryverified
Pulmonary VeinnounMWEany of four veins that carry arterial blood from the lungs to the left atrium of the heartverified
Pulmonic PlaguenounMWEa rapidly progressive and frequently fatal form of the plague that can spread through the air from person to personverified
Pulp CavitynounMWEthe central cavity of a tooth containing the pulp (including the root canal)verified
Pulse Height AnalyzernounMWEscientific instrument consisting of an electronic circuit that permits only voltage pulses of predetermined height to passverified
Pulseless DiseasenounMWEdisorder characterized by the absence of a pulse in both arms and in the carotid arteriesverified
Pump PrimingnounMWEintroducing water into a pump to improve the seal and start the water flowingverified
Pump RoomnounMWEa pump house at a spa where medicinal waters are pumped and where patrons gatherverified
Pumpkin AshnounMWEtimber tree of central and southeastern United States having hairy branchlets and a swollen trunk baseverified
Pumpkin VinenounMWEa coarse vine widely cultivated for its large pulpy round orange fruit with firm orange skin and numerous seedsverified
Punch BagnounMWEan inflated ball or bag that is suspended and punched for training in boxingverified
Punching BagnounMWEan inflated ball or bag that is suspended and punched for training in boxingverified
Punching BallnounMWEan inflated ball or bag that is suspended and punched for training in boxingverified
Punctuated EquilibriumnounMWEa theory of evolution holding that evolutionary change in the fossil record came in fits and starts rather than in a steady process of slow changeverified
Punctuation MarknounMWEthe marks used to clarify meaning by indicating separation of words into sentences and clauses and phrasesverified
Punitive DamagesnounMWE(law) compensation in excess of actual damages (a form of punishment awarded in cases of malicious or willful misconduct)verified
Punk RocknounMWErock music with deliberately offensive lyrics expressing anger and social alienationverified
Punk RockernounMWEa teenager or young adult who is a performer (or enthusiast) of punk rock and a member of the punk youth subcultureverified
Pupet RegimenounMWEa government that is appointed by and whose affairs are directed by an outside authority that may impose hardships on those governedverified
Pupillary ReflexnounMWEreflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smallerverified
Puppet GovernmentnounMWEa government that is appointed by and whose affairs are directed by an outside authority that may impose hardships on those governedverified
Puppet StatenounMWEa government that is appointed by and whose affairs are directed by an outside authority that may impose hardships on those governedverified
Purchase OrdernounMWEa commercial document used to request someone to supply something in return for payment and providing specifications and quantitiesverified
Pure Binary Numeration SystemnounMWEa positional system of numeration that uses binary digits and a radix of twoverified
Pure MathematicsnounMWEthe branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulnessverified
Purging CassianounMWEdeciduous or semi-evergreen tree having scented sepia to yellow flowers in drooping racemes and pods whose pulp is used medicinallyverified
Purl StitchnounMWEone of the two basic knitting stitches, used to create the inside of plain knittingverified
Purple AmaranthnounMWEtall showy tropical American annual having hairy stems and long spikes of usually red flowers above leaves deeply flushed with purpleverified
Purple ApricotnounMWEsmall hybrid apricot of Asia and Asia Minor having purplish twigs and white flowers following by inferior purple fruitverified
Purple AvensnounMWEerect perennial of north temperate zone having pinnate leaves and a few nodding flowers with a brown-purple calyx and orange and pink petalsverified
Purple BacterianounMWEfree-living Gram-negative pink to purplish-brown bacteria containing bacteriochlorophyllverified
Purple BonesetnounMWENorth American herb having whorled leaves and terminal clusters of flowers spotted with purpleverified
Purple Chinese HousesnounMWEwhite and lavender to pale-blue flowers grow in perfect rings of widely spaced bands around the stems forming a kind of pagodaverified
Purple ClematisnounMWEclimber of northeastern North America having waxy purplish-blue flowersverified
Purple ClovernounMWEerect to decumbent short-lived perennial having red-purple to pink flowersverified
Purple CressnounMWEsmall perennial herb of cooler regions of North America with racemose purple flowersverified
Purple EmperornounMWElarge European butterfly the male of which has wings shaded with purpleverified
Purple Fringeless OrchidnounMWEorchid of northeastern and alpine eastern North America closely related to the purple fringed orchids but having rosy-purple or violet flowers with denticulate leaf divisionsverified