An abnormal separation or gap between two normally adjacent structures in the body, such as muscles or teeth.
From Greek 'dia-' (apart) + 'stasis' (standing, position). First used in ancient medical texts to describe structural separations.
Diastema (gap between teeth) and diastasis recti (separated abdominal muscles) are the same word—both describing body parts that have drifted apart from where evolution intended them to be!
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