请输入您要查询的英文单词:

 

单词 alveolus
释义

alveolus

/ˌalvɪˈəʊləs / /alˈvɪələs /
noun (plural alveoli /ˌalvɪˈəʊlʌɪ/ /alˈvɪəliː/) chiefly Anatomy
1Any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange.Scientists also suspect that air pollutants might dampen the growth of alveoli, tiny air sacs in the lungs....
  • Holes in the lungs occur as the alveoli air sacs break down.
  • As altitude increases above sea level, atmospheric pressure drops with a parallel decrease in the amount of oxygen available at the blood/air interface in the lung alveolus.
1.1An acinus (sac-like cavity) in a gland.
2The bony socket for the root of a tooth.No preserved teeth or alveoli can be observed in the premaxilla and dentary bones....
  • The tooth row is present throughout the entire preserved length of the jaw and possesses 16 teeth and empty alveoli.
  • Only a few, fragmentary teeth are preserved, and judging by the fragments and the size of alveoli, the teeth were gracile.

Derivatives

alveolate

/alvɪˈəʊlət / /alˈvɪələt / adjective ...
  • The Siddall group addressed the molecular phylogeny of three, very similar, alveolate genera.
  • Several workers have suggested that the entire alveolate clade is derived from a photosynthetic ancestor.
  • One of them corresponded to an alveolate sequence belonging to the recently described marine.

Origin

Late 17th century: from Latin, 'small cavity', diminutive of alveus.

Rhymes

随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 4:46:33