Dictionaryal•ve•o•laPronunciation: (al-vē'u-lu), [key] —n., —pl. -laePronunciation: (-lē"). [key] Bot., Zool. 1. a small cavity, cell, or pit on the surface of an organ. 2. an alveolus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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