Learn how to say Diastema correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word diastema:
noun (plural diastemata)
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.
mid 19th century: via late Latin from Greek diastēma ‘space between’