V2EX tegument

Tegument

释义 (Definition)

(生物学)被覆物;外皮;表皮:指包裹、保护身体或器官的外层组织。植物学中常指胚珠外被/种皮(tegument/s)等保护性结构。(在非专业语境中也可泛指“覆盖层”。)

例句 (Examples)

The insect’s tegument protects it from drying out.
昆虫的外皮能防止它脱水。

In some plants, the ovule’s teguments later develop into the seed coat, forming a tough protective layer around the embryo.
在一些植物中,胚珠的外被会发育成种皮,在胚周围形成坚韧的保护层。

发音 (Pronunciation, IPA)

/tjmnt/

词源 (Etymology)

来自拉丁语 tegumentum “覆盖物、外衣”,源于动词 tegere “覆盖、遮蔽”。因此该词在科学语境中常用来指“包覆并起保护作用的外层结构”。

相关词 (Related Words)

文学/著作中的用例 (Literary Works)

  • Oxford English Dictionary(收录并释义该词,常以生物学义项为主)
  • Encyclopaedia Britannica(在动物体表结构、植物胚珠/种子相关条目中常见此类术语用法)
  • 经典植物学与动物学教材/专著中(如胚珠结构、昆虫体表结构章节)常以术语形式出现:tegument / teguments
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