请输入您要查询的英文单词:

 

单词 blood gill
释义

Definition of blood gill in English:

blood gill

noun
Zoology
  • (In some invertebrates) a diverticulum of the body wall containing a blood-filled space but few or no tracheae, through which gases or ions may pass to or from the surrounding medium; especially such a structure in the aquatic larvae of certain insects (e.g. chironomid midges), originally supposed to be a respiratory organ but now thought to be concerned mainly with osmoregulation; usually in plural.

Origin

Late 19th century. After German Blutkiemen (plural, 1889 or earlier).

Definition of blood gill in US English:

blood gill

noun
Zoology
  • (In some invertebrates) a diverticulum of the body wall containing a blood-filled space but few or no tracheae, through which gases or ions may pass to or from the surrounding medium; especially such a structure in the aquatic larvae of certain insects (e.g. chironomid midges), originally supposed to be a respiratory organ but now thought to be concerned mainly with osmoregulation; usually in plural.

Origin

Late 19th century. After German Blutkiemen (plural, 1889 or earlier).

随便看

 

英汉双解词典包含464360条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/10/19 10:26:00