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单词
placoid
释义
placoid
/ˈplækɔɪd/
adjective
Zoology
(of fish scales) tooth-like, being made of dentine with a pointed backward projection of enamel, as in sharks and rays
【动】(鱼鳞)板状的。比较
CTENOID
和
GANOID
.
词源
mid 19th cent.: from Greek
plax, plak-
'flat plate' +
-OID
.
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unplayed
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更新时间:2025/7/6 14:07:28