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单词 head cone
释义

> as lemmas

head cone
head cone n. Zoology rare a conical appendage, present in two or three pairs, surrounding the mouth of some pteropod molluscs.
ΚΠ
1848 T. R. Jones in Todd's Cycl. Anat. & Physiol. IV. 176/1 The mouth of the Clio is a vertical fissure, that is easily displayed by slightly folding back the head-cones.
2000 Biol. Bull. 198 302 Single pair of posterior head cones.
extracted from headn.1
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as lemmas
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