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单词 camerostome
释义

camerostomen.

Brit. /ˈkam(ə)rəstəʊm/, U.S. /ˈkæm(ə)rəˌstoʊm/
Forms: 1800s– camerostome, 1900s– camarastome (rare), 1900s– camarostome (rare), 1900s– camerastome (rare).
Origin: A borrowing from French. Etymon: French camerostome.
Etymology: < French camerostome ( P. A. Latreille Cours d'entomol. (1831) 166), irregularly < classical Latin camera camera n. + ancient Greek στόμα mouth (see -stome comb. form). Compare scientific Latin camerostoma (1831 in the same source).With the forms in camara- compare classical Latin camara, variant of camera.
Zoology.
In chelicerate arthropods: a sclerite that overhangs the mouth, usually formed from the fused coxae of the pedipalps. Occasionally also: (in mites) the cavity formed by this.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > member of > parts of > anterior part of body
camerostome1881
1881 E. R. Lankester in Proc. Royal Soc. 32 394 Camerostome.—The tubercular sclerite at the base of the first pair of appendages overhanging the mouth may be spoken of by this term (introduced by Latreille) both in Limulus and the other Arachnida.
1924 Trans. Amer. Microsc. Soc. 43 88 Camerostome..entirely inferior, slightly broader than long, angular, reënforced by heavier chitinization.
2002 D. D. Bowman et al. Feline Clin. Parasitol. v. 357/2 The camerostome (the cavity in which the capitulum is located) is indefinite and obscured by the large cheeks.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).
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n.1881
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