英语词源字典 - 在线词源网站

papaveretum [papaveretum 词源字典]: "A mixture of the hydrochlorides of morphine and other alkaloids in approximately the natural proportions found in opium, used as an analgesic in the treatment of moderate to severe pain and as a preoperative sedative", Early 20th cent. From classical Latin papāver poppy + -etum (in acetum, quinetum, etc.).[papaveretum etymology, papaveretum origin, 英语词源]
pentangular: "Having five angles or angular points; pentagonal", Mid 17th cent.; earliest use found in Sylvanus Morgan (1620–1693), arms painter and author. From penta- + angular, after pentangle.
phon: "A unit of the perceived loudness of sounds", 1930s: from Greek phōnē 'sound'.
psammophyte: "A plant restricted to sandy habitats; a psammophilous plant", Early 20th cent.; earliest use found in William Fisher (1846–1910). After German Psammophyt; compare earlier psammophile.
Pel's fishing owl: "A large fishing owl, Scotopelia peli, with rufous plumage, darker in the upperparts and paler, with slight streaks, in the underparts, found in parts of sub-Saharan Africa", 1950s; earliest use found in David Bannerman (b. 1886). From the genitive of the name of Hendrik Severinus Pel, Dutch colonial official on the Gold Coast (now Ghana), 1840–50, and zoological collector) + fishing owl.
plutodemocracy: "Rule or government by formal democratic processes but with only the wealthy having any real power", Late 19th cent.; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From pluto- + democracy.
pteranodon: "A large tailless pterosaur of the Cretaceous period, with a long toothless beak, a long bony crest, and a wingspan of up to 7 m", Modern Latin, from Greek pteron 'wing' + an- 'without' + odous, odont- 'tooth'.
paravent: "Chiefly in France or in French contexts: something, especially a screen, that provides protection against the wind; (hence in extended use) a dividing screen or partition", Mid 19th cent. From French paravent from Italian paravento from para- + vento wind.
pentagrid: "A thermionic valve having five grids; a heptode", 1930s; earliest use found in Wireless World. From penta- + grid.
peremption: " Law . The action of quashing a suit, legal process, etc., after the expiry of a fixed period of time; the expiry of a right, etc., after a fixed period of time. Now US", Late 15th cent.; earliest use found in English Historical Review. From post-classical Latin peremption-, peremptio action or effect of killing or destroying from classical Latin perēmpt-, past participial stem of perimere to destroy, kill + -iō.
psammophile: "A plant that thrives in sand or sandy soil. Later also: an animal that lives in sand, or in a sandy habitat", Late 19th cent.; earliest use found in Frederic A. Lees (1847–1921). From psammo- + -phile, perhaps after French psammophile, adjective.
phacoanaphylactic: "Caused by, involving, or relating to hypersensitivity to lens proteins", 1920s. From phaco- + anaphylactic, after scientific Latin phacoanaphylacticus.
proctosigmoidoscope: "An instrument for the visual examination of the rectum and sigmoid colon; a proctoscope", 1920s.
putid: "Morally or intellectually corrupt or worthless; base, foul, loathsome; = putrid. Now rare", Late 16th cent.; earliest use found in William Fulke (d. 1589), theologian and college head. From classical Latin pūtidus rotten, decaying, stinking, foul, base from pūtēre to stink + -idus.
plagiocephalic: " Medicine and Physical Anthropol. Designating or characterized by an oblique deformity of the skull (plagiocephaly)", Late 19th cent.; earliest use found in Journal of the Royal Anthropological Institute. From plagio- + -cephalic, after plagiocephaly.
pantomography: "A form of tomography for obtaining radiographs of a curved surface, specifically of the teeth and jaws, by rotation of the body and film during exposure", 1950s. From pan- + tomography. Compare pantomographic.
pedate: "Shaped like a foot, especially that of a bird; ( Botany ) designating or characterized by a leaf shape or venation pattern similar to a palmate or digitate arrangement, but with the lobes, leaflets, or veins not all arising from a single central point, the lateral divisions being further subdivided or fused near the base; (also) designating or characterized by the arrangement of other parts in such a pattern, with successive lateral branches arising near the base of earlier branches", Late 17th cent.; earliest use found in Francis Willughby (1635–1672), naturalist. From classical Latin pedātus having feet from ped-, pēs foot + -ātus.
psittacosaur: "A dinosaur of the family Psittacosauridae; a psittacosaurus", 1920s. From scientific Latin Psittacosaurus Psittacosaurus: see -saur.
phonometer: "An instrument for measuring or automatically recording the intensity of sound", Early 19th cent.; earliest use found in The New Monthly Magazine. From phono- + -meter.
phonovision: "A system of television, invented by John Logie Baird but never publicly demonstrated, whereby vision and sound signals could be recorded on discs similar to gramophone records", 1920s; earliest use found in Punch.