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[dahy-uh-stee-muh] /ˌdaɪ əˈsti mə/
noun, plural diastemata
[dahy-uh-stee-muh-tuh] /ˌdaɪ əˈsti mə tə/ (Show IPA)
Cell Biology. the modified protoplasm at the equator of a cell, existing before mitotic division.
Dentistry. a space between two teeth, especially a space between a canine and an incisor of the upper jaw into which a lower canine occludes.
Origin of diastema
1350-1400; Middle English < Late Latin < Greek: interval, equivalent to diastē, variant stem of diastánai to stand apart + -ma noun suffix denoting the result of action Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for diastema


noun (pl) -mata (-mətə)
an abnormal space, fissure, or cleft in a bodily organ or part
a gap between the teeth
Word Origin
C19: New Latin, from Greek: gap, from diistanai to separate; see diastasis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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diastema in Medicine

diastema di·a·ste·ma (dī'ə-stē'mə)
n. pl. di·a·ste·ma·ta (-mə-tə)

  1. A fissure or abnormal opening in a part, especially when congenital.

  2. A gap or space between two adjacent teeth in the same dental arch.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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