| 释义 |
‖ paxilla Zool.|pækˈsɪlə|
Pl. -æ.
[mod.L., from classical L. paxillus small stake, peg.]
A pillarlike pedicel in echinoderms, surmounted by a tuft of minute calcified spinelets attached to the integument.
1870Rolleston Anim. Life 142 The spines..may carry a coronet of numerous calcified setae on their apices when they are called ‘paxillae’. 1878Bell tr. Gegenbaur's Comp. Anat. 206 The incompletely calcified stalk of the pedicellaria corresponds to the stalk of the paxilla of the Asterida.
Hence paˈxillar a., of or pertaining to paxillæ; paˈxillate a., having paxillæ; paxiˈlliferous a., bearing paxillæ; paˈxilliform a., having the shape of a paxilla.
1857Mayne Expos. Lex. 892/1 Having the body furnished with appendices,..paxilliferous. 1889Sladen in Challenger Rep., Zool. XXX. 286 Plates of the abactinal area more or less truly paxilliform. 1890Cent. Dict., Paxillate. 1900Proc. Zool. Soc. 292 Paxillar crowns are very large and oval. |