noun, plural di·a·ste·ma·ta [dahy-uh-stee-muh-tuh] /ˌdaɪ əˈsti mə tə/.
  1. Cell Biology. the modified protoplasm at the equator of a cell, existing before mitotic division.
  2. 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
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Historical Examples of diastema

British Dictionary definitions for diastema


noun plural -mata (-mətə)
  1. an abnormal space, fissure, or cleft in a bodily organ or part
  2. a gap between the teeth

Word Origin for diastema

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

diastema in Medicine


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.