n., pl., -ma·ta (-mə-tə).
A gap or space between two teeth.
[Late Latin diastēma, interval, from Greek, from diistanai, diastē-, to separate. See diastasis.]
diastematic di'a·ste·mat'ic (-stə-măt'ĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.