Alveolus Definition

ăl-vēə-ləs
alveoli
noun
alveoli
A small cavity or hollow, as a cell of a honeycomb, air cell of a lung, tooth socket, etc.
Webster's New World
The alveolar ridge; teethridge.
Webster's New World
A small angular cavity or pit, such as a honeycomb cell.
American Heritage Medicine
A tooth socket in the jawbone.
American Heritage Medicine
A tiny, thin-walled, capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place.
American Heritage Medicine
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other
Any of the tiny air-filled sacs arranged in clusters in the lungs, in which the exchange of oxygen and carbon dioxide takes place.
American Heritage Science

Other Word Forms of Alveolus

Noun

Singular:
alveolus
Plural:
alveoli

Origin of Alveolus

  • From Latin alveolus, a diminutive of alveus (“a tray, trough, basin”), from alvus (“the belly, the stomach, bowels, womb, etc.”).

    From Wiktionary

  • Latin small hollow diminutive of alveus a hollow from alvus belly

    From American Heritage Dictionary of the English Language, 5th Edition

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