plastron
n. 护胸, 胸铠, 胸甲, 胸饰 [医] 胸板(胸骨与肋软骨的合称), 腹甲(龟)
发音
词形变化
别名
释义与例句
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1.
The nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace.
生物 动物学 -
2.
A man's shirt-bosom.
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3.
An ornamental front panel on a woman's bodice.
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4.
A breastplate.
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5.
A half-jacket worn under the jacket for padding or for safety.
政治 体育 军事 -
6.
A film of air trapped by specialized hairs against the body of an aquatic insect, and which acts as an external gill.
The plastron of a diving beetle is not directly a source of oxygen, but acts as a gill, acquiring oxygen from the surrounding water.
2013, Jon F. Harrison, Lutz T. Wasserthal (revisions & updates), 17: Gaseous Exchange, R. F. Chapman, Stephen J. Simpson (editor), Angela E. Douglas (editor), The Insects: Structure and Function, 5th Edition, page 535, The plastrons of other insects are generally less efficient than that of Aphelocheirus as they have a less dense hair pile from which the air is more readily displaced.
词汇关系
上位词 6
整体词 3
词源
Borrowed from French plastron, from Italian piastrone, augmentive of piastra (“breastplate”), from Latin emplastrum (“plaster”), from Ancient Greek ἔμπλαστρον (émplastron), from ἔμπλαστος (émplastos, “daubed, plastered”), from ἔμπλασσειν (émplassein, “to mould, form”).
来源：wiktionary