| 单词 | retinaculum |
| 释义 | retinaculum /ret'n ak"yeuh leuhm/, n. , pl. retinacula /-leuh/. 1. Anat. , Zool. any of various small structures that hook, clasp, or bind other structures to move them or hold them in place. 2. Entomol. a bristle on the butterfly forewing that clasps to the frenulum of the hindwing. [1815-25; < NL; L retinaculum tether, rope which holds fast or restrains, equiv. to retin(ere) to hold fast, RETAIN + -a- (from v. stems ending in -a-; cf. GUBERNACULUM) + -culum -CULE2] |
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