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单词 pleopod
释义

pleopodn.

Brit. /ˈplɪəpɒd/, U.S. /ˈpliəˌpɑd/
Inflections: Plural pleopods, (now rare) pleopoda.
Forms: 1800s– pleopod, 1900s– pleiopod (irregular).
Origin: Formed within English, by compounding. Etymons: pleon n.1, -pod comb. form.
Etymology: < pleo- (in pleon n.1) + -pod comb. form.With the plural form pleopoda compare discussion at -pod comb. form.
Zoology.
Each of the forked limbs attached in pairs to the abdomen of a crustacean and used to aid locomotion and in females for carrying eggs; = swimmeret n. Cf. pereiopod n.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Crustacea > [noun] > member of > parts of > abdominal appendage
swimmeret1840
pleopod1856
pleopodite1877
uropod1893
1856 C. Spence Bate in Rep. Brit. Assoc. 1855 38 Pleopoda or swimming feet are attached to..the pleon.
1876 Amer. Naturalist 10 397 On the underside..is seen a pair of appendages, the swimmerets (pleopoda).
1893 T. R. R. Stebbing Hist. Crustacea iv. 45 The first five of these segments frequently have appendages that are really natatory and may properly be called pleopods, swimming-feet.
1923 Ann. N.Y. Acad. Sci. 29 156 Two pairs of biramous pleiopods.
1990 Jrnl. Plankton Res. 12 1283 Males utilize their elongated and specialized pleiopods for copulation.
2003 Marine & Freshwater Res. 54 597 The fact that the full ovarian reproductive potential of C. cainii is not attained is probably due to the limitation of egg attachment space on the pleopods.

Derivatives

pleˈopodal adj.
ΚΠ
1947 Amer. Naturalist 81 396 The discharge of the pleopodal glands during egg-attachment.
2004 Aquaculture 230 189 There was not a linear relationship between female size and pleopodal egg number.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1856
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