antrum

1. 1.

   a natural cavity or hollow in a bone

   Broadercavity

Other forms of antrum

plural

antra

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about antrum

What does antrum mean?

antrum means "a natural cavity or hollow in a bone".

How many syllables are in antrum?

antrum has 2 syllables: an-trum. The stress falls on "an".

Is antrum a common word?

antrum is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.