noun, plural di·a·ste·ma·ta [dahy-uh-stee-muh-tuh] /ˌdaɪ əˈsti mə tə/.
Origin of diastema
Examples from the Web for 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
Three specimens lack a diastema and 17 specimens have a 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
Then the absence of a diastema in the tooth series, coupled with the presence in Macrauchenia of a complete dentition.The Cambridge Natural History, Vol X., Mammalia|Frank Evers Beddard
The diastema in front of the premolars is longer in the living Equidae than in their extinct allies.The Vertebrate Skeleton|Sidney H. Reynolds