diastema

 
Pronunciation: /ˌdʌɪəˈstiːmə, dʌɪˈastɪmə/

noun (plural diastemata)

Zoology
  • a space separating teeth of different functions, especially 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 century: via late Latin from Greek diastēma 'space between'