| 单词 |
isopod |
| 释义 |
isopod, n. (a.) Zool.|ˈaɪsəpɒd|
Also isopode. Pl. isopods; also freq. in L. form isopoda |aɪˈsɒpɒdə|.
[a. mod.F. isopode, f. mod.L. Isopod-a neuter pl., f. Gr. type *ἰσοποδ-, f. iso- + πούς, ποδ- foot.]
An animal of the order Isopoda of sessile-eyed Crustaceans, characterized by seven pairs of equal and similarly placed thoracic legs; comprising marine, fresh-water, and terrestrial species, some being parasitic.
1835Kirby Hab. & Inst. Anim. II. xv. 41 Isopods. Head distinct. Eyes sessile. Legs simple, equal. 1852Dana Crust. i. 11 There are, however, true intermediate species between the Amphipods and Isopods. 1885C. F. Holder Marvels Anim. Life 144 The little isopods, so common on our rocky shores.
b. attrib. or adj. = isopodous.
1864in Webster. 1875Blake Zool. 308 The isopod Crustacea have the head distinct from the segment bearing the first pair of feet.
So isopodan |aɪˈsɒpəʊdən| a. and n. = prec.; isopodiform |aɪsəʊˈpɒdɪfɔːm| a. [ad. mod.L. isopodiformis: see -form], having the form of or resembling an isopod, as certain insect larvæ; isopodimorphous |-ˈmɔːfəs| a. [Gr. µορϕή form] = isopodiform.
1855Mayne Expos. Lex., Isopodiformis, applied by Kirby to the hexapodous, antenniferous and saprophagous larvæ which have an oblong body, a distinct thoracic clypeus or buckler, and the anus furnished with filaments or plates: isopodiform. 1856Dana in Amer. Jrnl. Sc. July 11 The size of the body far transcends the ordinary Isopodan limit. |
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