1) Dislocation 2) Medical terminology 
[pathology] In pathology, diastasis is the separation of parts of the body that are normally joined together, such as the separation of certain abdominal muscles during pregnancy, or of adjacent bones without fracture. Compare with: ...[physiology] In physiology, diastasis is the middle stage of diastole during the cycle of a heartbeat, where the initial passive filling of the heart`s ventricles has slowed down, but before the atria contract to complete the active filling. ...
• (n.) A forcible of bones without fracture.
(di-as´tә-sis) dislocation or separation of two normally attached bones between which there is no true joint. Diastasis of the pubic symphysis. an abnormally large separation between associated bones, as between the ribs. the rest period of the cardiac c...
Di·as'ta·sis noun [ New Latin See Diastase .] (Surg.) A forcible separation of bones without fracture. 
The forcible separation of parts that are normally joined.
Type: Term Pronunciation: dī-as′tă-sis Definitions: 1. Any simple separation of normally joined parts. 2. The midportion of diastole when the blood enters the ventricle slowly or ceases to enter prior to atrial systole. Diastasis duration is in inverse proportion to heart rate and is absent at very high heart rates. Synonyms: divari...
Diastasis is the surgical forcible separation of bones without fracture.
[n] - separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone
noun separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone
A vertical separation of the two halves of the abdominal muscles that can occur in late pregnancy
the separation of normally joined parts, as in the dislocation of bones, without fracture. · the diastolic rest period immediately preceding systole.