| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
| |
| antrum |
| |
| SYLLABICATION: | an·trum |
| PRONUNCIATION: |   n tr m |
| NOUN: | Inflected forms: pl. an·tra (-tr)
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. | | ETYMOLOGY: | Late Latin, cavity in the body, from Latin, cave, from Greek antron. | | OTHER FORMS: | antral —ADJECTIVE
| | |
| |
| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
|
|
