Glossary · Nouns · P
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TermTypeDefinitionClassificationsUpdated
Pedunculate OaknounMWEmedium to large deciduous European oak having smooth leaves with rounded lobesverified
Peennounthe part of a hammerhead opposite the flat striking surface (may have various shapes)verified
Peep SightnounMWErear gunsight having an adjustable eyepiece with a small aperture through which the front sight and the target are alignedverified
Peepshownounan exhibition of pictures or objects viewed through a small hole or magnifying glassverified
Peer Entity AuthenticationnounMWEThe process of verifying that a peer entity in an association is as claimed.Process
Peer-to-peer (P2P)nounMWEPeer-to-peer communication, the communications that travel from one user's computer to another user's computer without being stored for later access on a server. E-mail is not a P2P communication since it travels from the sender to a server, and is retrieved by the recipient from the server. On-line chat, however, is a P2P communication since messages travel directly from one user to another.Network
Pegmatitenouna form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elementsverified
Pelnounthe smallest discrete component of an image or picture on a screen, usually a colored dot; also known as a pixelverified
Pelicannounlarge long-winged warm-water seabird having a large bill with a distensible pouch for fishverified
Pellagranouna disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin)verified
Pellitorynounherb that grows in crevices having long narrow leaves and small pink apetalous flowersverified
Pellitory-Of-Spainnouna small Mediterranean plant containing a volatile oil once used to relieve toothacheverified
Pellitory-Of-The-Wallnounherb that grows in crevices having long narrow leaves and small pink apetalous flowersverified
Pelvic ArchnounMWEthe structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebratesverified
Pelvic CavitynounMWEthe space bounded by the bones of the pelvis and containing the pelvic visceraverified
Pelvic FinnounMWEeither of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movementverified
Pelvic GirdlenounMWEthe structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebratesverified
Pelvic Inflammatory DiseasenounMWEinflammation of the female pelvic organs, especially the Fallopian tubes, caused by infection by any of several microorganisms chiefly gonococci and chlamydiaverified
Pelvimetrynounmeasurement of the dimensions of the bony birth canal (to determine whether vaginal birth is possible)verified
Pelvisnounthe structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebratesverified
Pemphigusnouna skin disease characterized by large thin-walled blisters (bullae) arising from normal skin or mucous membraneverified
Pen-Tailed Tree ShrewnounMWEbrown tree shrew having a naked tail bilaterally fringed with long stiff hairs on the distal thirdverified
Penal ColonynounMWEa penal institution where prisoners are exiled, often located on an island from which escape is difficult or impossibleverified
Penal FacilitynounMWEan institution where persons are confined for punishment and to protect the publicverified
Penal InstitutionnounMWEan institution where persons are confined for punishment and to protect the publicverified
Penaltynoun(games) a handicap or disadvantage that is imposed on a competitor (or a team) for an infraction of the rules of the gameverified
Penalty BoxnounMWE(ice hockey) an enclosed bench to the side of an ice-hockey rink for players who are serving time penaltiesverified
Pencil ErasernounMWEan eraser made of rubber or a synthetic material with properties similar to rubberverified