Definition of Antrum in English :

Define Antrum in English

Antrum meaning in English

Meaning of Antrum in English

Pronunciation of Antrum in English

Antrum pronunciation in English

Pronounce Antrum in English


see synonyms of antrum


1. antrum

a natural cavity or hollow in a bone

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of antrum
noun plural -tra (-trə)
a natural cavity, hollow, or sinus, esp in a bone

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of antrum
nounWord forms: plural ˈantra (ˈæntrə ; anˈtrə) or ˈantrums
a cavity, esp. one within a bone, as either of a pair of sinuses in the upper jaw

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of antrum
n. pl. an·tra (-trə)
1. A cavity or chamber, especially one in a bone.
2. Either of the sinuses in the bones of the upper jaw, opening into the nasal cavity.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.