单词 | pentadactyl |
释义 | † pentadactyln.1 Obsolete. A shellfish mentioned by Pliny (not identified). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > miscellaneous types > other types of mollusc squame1393 shell-worm1591 spout-fish1594 pentadactyl1601 sea cucumber1601 pirot1611 worm1621 nun-fish1661 scarlet mussel1672 sea-navel1678 redcap?1711 strawberry cockle1713 sea-finger1748 sea-nail1748 sea-acorn1755 coneya1757 compass1776 bubble shell1818 glass-shell1851 golden comb1857 cryptodont1893 nuculoid1960 1601 P. Holland tr. Pliny Hist. World II. 451 The wilkes also and winckles which resemble shell-snailes: of which kind are the Pentadactyles, Melicembales, and the prickly Echinophoræ. 1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia Isagoge sig. B8 The turbines, are great,..tuberous,..muricate, or pentedactyls. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online December 2021). pentadactyladj.n.2 Chiefly Zoology. A. adj. Having five fingers, toes, or finger-like processes; spec. designating the ancestral limb-bone pattern of land vertebrates. ΘΚΠ the world > life > the body > external parts of body > limb > digit > [adjective] > having specific number of pentadactylous1717 didactylous1802 didactyl1803 pentadactyl?a1808 polydactyl1827 hexadactylous1828 tetradactyl1847 polydactylous1858 sexdigitated1868 sexdigital1875 hexadactylic1880 pentadactylic1880 the world > animals > animal body > general parts > body and limbs > [adjective] > having separate digits > having several digits > having five digits pentadactylous1717 pentadactyl?a1808 pentadactylic1880 ?a1808 Universal Syst. Nat. Hist. XII. 259 The limbs are of moderate length and rather slender than strong: the feet all pentadactyle, with slender toes, armed by curved claws. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 226 The toe answering to the fifth, in lizards and other pentadactyle animals. 1887 Athenæum 23 Apr. 548/1 It is shown how primitive is the plantigrade pentadactyle foot of man. 1927 Science 24 June 603 The retention of unimpaired pentadactyl extremities, of a claviculate shoulder girdle, of undiminished powers of supination of the hand..all testify explicitly to the fact that man's ground-living adaptations are his latest acquisitions. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) vi. 163 Their [sc. Paleocene mammals'] limbs are not greatly removed in structure from the primitive five-toed (pentadactyle) type, except for the presence of a projecting elbow in the fore-limb and heel in the hind-limb. 1977 P. B. Medawar & J. S. Medawar Life Sci. i. 17 A simple five-rayed (pentadactyl) structure. 1990 Daily Tel. 6 Sept. 7/2 Another find in Russia revealed a creature of similar age with six digits, making it more baffling why land living creatures are ‘pentadactyl’. B. n.2 A person or animal with five digits on each limb. ΘΚΠ the world > life > the body > external parts of body > limb > digit > [noun] > having specific number of > person having sexdigitist1775 pentadactyl1875 1875 Harper's Mag. Aug. 423/1 The last class of vertebrates are united by common traits, by having five fingers, by being therefore pentadactyls. 1880 R. A. Proctor Rough Ways 213 Marie, a pentadactyle with deformed thumbs, gave birth to a boy with six toes. 1926 R. W. Sellars Princ. & Probl. Philos. xx. 302 You see no deeper..than you see..into our having five fingers by calling us pentadactyls. 1995 Trop. Zool. 8 146 The morphologically most primitive species (pentadactyls)..testify to the <first evolutionary phase> of the trend towards limblessness. Derivatives pentaˈdactylism n. [originally after German Pentadactylie pentadactyly n.] now rare the state or condition of being pentadactyl. ΘΚΠ the world > life > the body > external parts of body > limb > digit > [noun] > having specific number of sexdigitism1775 polydactylism1865 pentadactylism1879 polydactyly1886 tetradactylity1891 pentadactyly1892 1879 tr. E. Haeckel Evol. Man II. 300 The original parent-form of the entire group had anteriorly and posteriorly five digits (Pentadactylism [Ger. Pentadactylie]). 1886 Encycl. Brit. XX. 454/2 The digital elements seem to indicate more than pentadactylism, as in the extinct Ichthyosauri. 1990 N.Y. Times 17 Apr. c11/1 The basic primitive mammal trend is toward pentadactylism... Even the horse's hoof and the deer's hoof are modified from five digits. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.11601adj.n.2?a1808 |
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