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单词 subchelate
释义

subchelateadj.

Brit. /ˈsʌbkiːleɪt/, U.S. /ˈsəbkiˌleɪt/
Origin: Formed within English, by derivation. Etymons: sub- prefix, chelate adj.
Etymology: < sub- prefix + chelate adj. In later use partly after subchela n.
Zoology.
Of a limb or other appendage of a crustacean: partially chelate; spec. (in later use) bearing a subchela. Also (of a pincer): that forms, or functions as, a subchela. Cf. subcheliform adj.
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the world > animals > invertebrates > phylum Arthropoda > class Crustacea > [adjective] > of parts of > having a subchela
monodactyl1819
subcheliform1836
monodactylous1841
subchelate1852
1808 Trans. Linn. Soc. 9 98 Arms four, subchelate, the fore pair very small.
1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. II ii. 802 Four anterior legs subchelate.
1877 T. H. Huxley Man. Anat. Invertebrated Animals vi. 272 Corycæus has..subchelate antennæ, and a rudimentary abdomen.
1900 Trans. Linn. Soc.: Zool. 28 152 The gnathopod might almost be called imperfectly ‘chelate’ instead of ‘subchelate’.
1942 Ecol. Monogr. 12 163 The fifth thoracic leg..is tucked up inside the gill chamber and, with its sub-chelate hand and numerous long hairs, functions to keep the gills clean.
1978 Crustaceana 35 96 The specimens of Naushonia were..readily distinguishable from other thalassinid shrimp because of the large subchelate claw on the cheliped of the one animal.
1995 P. J. Hayward et al. in P. J. Hayward & J. S. Ryland Handbk. Marine Fauna N.W. Europe viii. 328/2 Chelipeds large; propodus elongate in female;..shorter and broader in male with dactyl forming subchelate closure.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1808
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