Medical Dictionary

alveolus

noun al·ve·o·lus \al-ˈvē-ə-ləs\
plural al·ve·o·li \-ˌlī, -(ˌ)lē\

Medical Definition of ALVEOLUS

:  a small cavity or pit: as a :  a socket in the jaw for a tooth b :  any of the small thin-walled air-containing compartments of the lung that are typically arranged in saclike clusters into which an alveolar duct terminates and from which respiratory gases are exchanged with the pulmonary capillaries c :  an acinus of a compound gland d :  any of the pits in the wall of the stomach into which the glands open

Illustration of ALVEOLUS

April 28, 2015
portmanteau Hear it
a word formed by the blending of words
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears