Alveolus (plural alveoli, adjective alveolar) is a general anatomical term for a concave cavity or pit that may refer to several more specific structures:
Dental alveolus, also known as "tooth socket", a socket in the jaw that holds the roots of teeth. The following anatomical terms refer to this context.
Alveolar ridge, the jaw structure that contains the dental alveoli
Alveolar consonant, a linguistic vocalization depending upon touching tongue to alveolar ridge. (Note: There are 16 subtypes of alveolar consonants linked from the target page and not listed separately here.)
Alveolus is considered by some (but not all) sources to be synonymous with acinus.
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