Copy of `Princeton University - WordNet - a lexical database for the English language`

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Princeton University - WordNet - a lexical database for the English language Category: General Date & country: 27/01/2008, USA Words: 85192

perdurability
noun the property of being extremely durable

pere david`s deer
elaphure noun large Chinese deer surviving only in domesticated herds

peregrination
noun traveling or wandering around

peregrine
peregrine falcon noun a widely distributed falcon formerly used in falconry

Perejil
noun a small uninhabited Mediterranean islet claimed by both Morocco and Spain

peremptory
adjective putting an end to all debate or action; `a peremptory decree`

perennation
noun the process of living through a number of years (as a perennial plant)

perennial
recurrent adjective recurring again and again; `perennial efforts to stipulate the requirements`

perennial ryegrass
English ryegrass noun European perennial grass widely cultivated for pasture and hay and as a lawn grass

perennial salt marsh aster
noun a variety of aster

perennially
adverb in a perennial manner; repeatedly; `We want to know what is perennially new about the world`

Pereskia
genus Pereskia noun genus of tropical American shrubby trees and woody climbers having slender branches with broad flat leaves and large panicles of flowers

perestroika
noun an economic policy adopted in the former Soviet Union; intended to increase automation and labor efficiency but it led eventually to the end of central planning in the Russian economy

perfect
adjective precisely accurate or exact; `perfect timing`

perfect game
noun a game in which a pitcher does not allow any opposing player to reach base

perfected
adjective (of plans, ideas, etc.) perfectly formed; `a graceful but not yet fully perfected literary style`

perfecter
noun a skilled worker who perfects somethings; `although not the inventor he must be recognized as the perfecter of this technique`

perfectibility
noun the capability of becoming perfect; `he believes in the ultimate perfectibility of man`

perfectible
adjective capable of becoming or being made perfect

perfection
noun the act of making something perfect

perfectionism
noun a disposition to feel that anything less than perfect is unacceptable; `his perfectionism seemed excessive to his students`

perfectionist
noun a person who is displeased by anything that does not meet very high standards

perfective
perfective aspect noun the aspect of a verb that expresses a completed action

perfective
perfect noun a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)

perfective tense
perfect noun a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)

perfidiously
adverb in a perfidious manner; `he was playing perfidiously one side against the other`

perfidy
perfidiousness noun betrayal of a trust

perfluorocarbon
PFC noun a powerful greenhouse gas emitted during the production of aluminum

perfoliate
adjective of a leaf having the base united around (and apparently pierced by) the stem

perfoliate leaf
noun a leaf with the base united around--and apparently pierced by--the stem

perforate
verb make a hole into or between, as for ease of separation; `perforate the sheets of paper`

perforated
adjective having a number or series of holes; `a perforated steel plate`; `perforated cancellation`; `perforated stamp`

perforated eardrum
noun an eardrum with a hole or tear in it; can interfere with normal hearing and cause other ear problems

perforating vein
vena perforantis noun veins that accompany the perforating arteries; drain leg muscles; empty into the deep femoral vein

perforation
noun the act of punching a hole (especially a row of holes as for ease of separation)

perforce
adverb by necessity; by force of circumstance

perform
verb get (something) done; `I did my job`

performance
public presentation noun a dramatic or musical entertainment; `they listened to ten different performances`; `the play ran for 100 performances`; `the frequent performances of the symphony testify to its popularity`

performance bond
surety bond noun a bond given to protect the recipient against loss in case the terms of a contract are not filled; a surety company assumes liability for nonperformance

performer
performing artist noun an entertainer who performs a dramatic or musical work for an audience

performing arts
noun arts or skills that require public performance

perfume
essence noun a toiletry that emits and diffuses a fragrant odor

perfumed
sweet-scented adjective having a natural fragrance; `odoriferous spices`; `the odorous air of the orchard`; `the perfumed air of June`; `scented flowers`

perfumer
noun a person who makes (and sells) perfumes

perfumery
noun the art of making perfumes

perfunctorily
as a formality adverb in a set manner without serious attention; `they answered my letter pro forma`; `he kissed her cheek perfunctorily`

perfuse
verb cause to spread or flush or flood through, over, or across; `The sky was suffused with a warm pink color`

perfusion
noun pumping a liquid into an organ or tissue (especially by way of blood vessels)

peri
noun a beautiful and graceful girl

perianal
adjective around the anus

perianth
chlamys noun collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils

periapsis
point of periapsis noun (astronomy) the point in as orbit closest to the body being orbited

periarterial plexus
plexus periarterialis noun an autonomic plexus that accompanies an artery

periarteritis
noun inflammation of the outer coat of an artery

periarteritis nodosa
polyarteritis nodosa noun a progressive disease of connective tissue that is characterized by nodules along arteries; nodules may block the artery and result in inadequate circulation to the particular area

Pericallis
genus Pericallis noun cineraria

pericardial
pericardiac adjective located around the heart or relating to or affecting the pericardium; `pericardial space`

pericardial cavity
pericardial space noun the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement

pericardial sac
noun the membrane surrounding the heart

pericardial vein
vena pericardiaca noun several small veins from the pericardium

pericarditis
noun inflammation of the pericardium

pericardium
noun a serous membrane with two layers that surrounds the heart

pericarp
seed vessel noun the ripened and variously modified walls of a plant ovary

pericementoclasia
noun pus pocket formation around a tooth

periclase
magnesia noun a white solid mineral that occurs naturally as periclase; a source of magnesium

Pericles
noun Athenian statesman whose leadership contributed to Athens` political and cultural supremacy in Greece; he ordered the construction of the Parthenon (died in 429 BC)

peridinian
noun flagellate with a thick test composed of plates

Peridiniidae
family Peridiniidae noun marine and freshwater dinoflagellates

Peridinium
genus Peridinium noun type genus of the family Peridiniidae

peridium
noun outer layer of the spore-bearing organ in many fungi

peridot
noun a pale green variety of chrysolite; used as a gemstone

peridotite
noun a dark coarse-grained igneous rock consisting principally of olivine

perigee
noun periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth

perigon
round angle noun an angle of 360 degrees

perigonal
adjective of or relating to a perigone

perihelion
noun periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun

perijove
noun periapsis in orbit around Jupiter

Perilla
genus Perilla noun small genus of Asiatic herbs

Perilla frutescens crispa
noun plant grown for its ornamental red or purple foliage

perilously
hazardously adverb in a dangerous manner; `he came dangerously close to falling off the ledge`

perilymph
noun the bodily fluid that fills the space between the bony labyrinth and the membranous labyrinth of the inner ear

perimysium
noun the sheath of connective tissue that covers a bundle of muscle fibers

perinasal
perirhinal adjective near the nose

perinatal
adjective occurring during the period around birth (5 months before and 1 month after); `perinatal mortality`; `perinatal care`

perinatologist
noun an obstetrician specializing in perinatology

perinatology
noun the branch of obstetrics concerned with the anatomy and physiology and diagnosis and treatment of disorders of the mother and the fetus or newborn baby during late pregnancy and childbirth and the puerperium

perineal
adjective of or relating to the perineum; `perineal pains`

perineal artery
arteria perinealis noun a branch of the internal pudendal artery that supplies superficial structures of the perineum

perineotomy
noun surgical incision into the perineum

perineum
noun the general region between the anus and the genital organs

perineurium
noun the sheath of connective tissue that covers a bundle of nerve fibers

period
point noun a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations; `in England they call a period a stop`

period
noun a unit of geological time during which a system of rocks formed; `ganoid fishes swarmed during the earlier geological periods`

period piece
noun any work of art whose special value lies in its evocation of a historical period

periodic
periodical adjective happening or recurring at regular intervals

periodic acid
noun any acid of iodine that contains oxygen

periodic apnea of the newborn
noun irregular breathing of newborns; periods of rapid breathing followed by apnea; believed to be associated with sudden infant death syndrome

periodic breathing
Cheyne-Stokes respiration noun abnormal respiration in which periods of shallow and deep breathing alternate

periodic event
recurrent event noun an event that recurs at intervals

periodic law
Mendeleev`s law noun (chemistry) the principle that chemical properties of the elements are periodic functions of their atomic numbers