diastasis

[ dahy-as-tuh-sis ]

noun

, plural di·as·ta·ses [dahy-, as, -t, uh, -seez].

1. Medicine/Medical. the separation of normally joined parts, as in the dislocation of bones, without fracture.
2. Physiology. the diastolic rest period immediately preceding systole.

diastasis

/ ˌdaɪəˈstætɪk; daɪˈæstəsɪs /

noun

1. pathol
   1. the separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone
   2. the separation of any two parts normally joined
2. physiol the last part of the diastolic phase of the heartbeat

Derived Forms

• diastatic, adjective

Word History and Origins

Origin of diastasis¹

1735–45; < New Latin < Greek diástasis a separation. See dia-, stasis

Word History and Origins

Origin of diastasis¹

C18: New Latin, from Greek: a separation, from diistanai to separate, from dia- + histanai to place, make stand

Example Sentences

She is still struggling with a severe case of diastasis recti, which is the separation of the abdominal muscles and affects her core strength.

From New York Times

Gunderson developed a severe case of diastasis recti during her pregnancy, which left a 9-centimeter separation of her "six-pack" muscles in her stomach that was big enough for a fist to fit through.

From Fox News

Gunderson developed a severe case of diastasis recti during her pregnancy, which left a 9-centimeter separation of her “six-pack” muscles in her stomach that was big enough for a fist to fit through.

From Seattle Times

And there is also the possibility of diastasis recti, “when the rectus abdominal muscles actually split apart, and during pregnancy it’s to make room for the baby,” Sapienza said.

From New York Times

Ms Thurston-Kellar decided to get private treatment in the end, but said the diastasis continued to have an effect on her ability to do everyday tasks as a new mother.

From BBC