| 单词 | acetabulum |
| 释义 | acetabulum n. (pl. acetabula) Zool. 1. the socket for the head of the thigh-bone, or of the leg in insects. 2. a cup-shaped sucker of various organisms, including tapeworms and cuttlefish. Etymology: ME f. L, = vinegar cup f. acetum vinegar + -abulum dimin. of -abrum holder |
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