单词 | adactylous |
释义 | adactylousadj. Zoology. rare. Of a vertebrate or vertebrate limb: without fingers or toes. Of a crustacean limb: without claws. ΘΚΠ the world > animals > animal body > general parts > body and limbs > [adjective] > having separate digits > without digits adactyl1802 adactylous1842 1842 Penny Cycl. XXIII. 84/2 Lateral and posterior appendage of the third joint of the six last feet (the adactylous and thoracic). 1858 W. Clark tr. J. van der Hoeven Handbk. Zool. II. 290 Pseudopus Merr.—Two rudiments of hind feet, adactylous. 1997 Proc. National Acad. Sci. U.S.A. 94 1695/2 The evolutionary transition between limbs without digits (adactylous)..and limbs with five digits (pentadactylous) involved an interim stage of polydactyly. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < adj.1842 |
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