AskDefine | Define antrum

Dictionary Definition

antrum n : a natural cavity or hollow in a bone [also: antra (pl)]

User Contributed Dictionary



Latin antrum, from Greek ἄντρον ‘cave’.




  1. A cavity, especially having bony walls.


Extensive Definition

In Biology, "Antrum" is a general term for a cavity or chamber which may have specific meaning in reference to certain organs or sites in the body.
Examples include
antrum in German: Antrum
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