Bible Dictionaries
Alveolus

Webster's Dictionary

(1):

(n.) A small depression, sac, or vesicle, as the socket of a tooth, the air cells of the lungs, the ultimate saccules of glands, etc.

(2):

(n.) A small cavity in a coral, shell, or fossil

(3):

(n.) A cell in a honeycomb.

Bibliography Information
Webster, Noah. Entry for 'Alveolus'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/alveolus.html. 1828.