- brachiopod (n.)
[brachiopod 词源字典]
- type of bivalve mollusk, 1836, Modern Latin, from Greek brakhion "arm" (see brachio-) + pous "foot," from PIE root *ped- (1) "a foot" (see foot (n.)). They have long spiral "arms" on either side of their mouths.[brachiopod etymology, brachiopod origin, 英语词源]