- 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
Examples from the Web for diastema
Historical Examples of diastema
Between them and the incisors above, and between the canine and the anterior pre-molar below, occurs a gap (or diastema).A Hand-book to the Primates, Volume 1 (of 2)
Henry O. Forbes
Three specimens lack a diastema and 17 specimens have a diastema.
The teeth are in a continuous series; no diastema or maxillary step is evident.Two New Pelycosaurs from the Lower Permian of Oklahoma
Richard C. Fox
The canines were not greatly enlarged, and no diastema separated any of the teeth.
The small size of the canine and of the first premolar produces a diastema in the tooth series.
- an abnormal space, fissure, or cleft in a bodily organ or part
- a gap between the teeth
Word Origin for diastema
- A fissure or abnormal opening in a part, especially when congenital.
- A gap or space between two adjacent teeth in the same dental arch.