noun ( pl. -mata |-mətə|)
a gap between the teeth, in particular
• Zoology a space separating teeth of different functions, esp. that between the biting teeth (incisors and canines) and grinding teeth (premolars and molars) in rodents and ungulates.
• a gap between a person’s two upper front teeth.
ORIGIN mid 19th cent.: via late Latin from Greek diastēma ‘space between.’"