Entry 1 sense Webster, 1913 Haematolysis /(hĕm`ȧ*tŏl"ĭ*sĭs [or] hĕ`mȧ-)/ · Haem·a·tol·y·sis · IPA 01 n. Dissolution of the red blood corpuscles with diminished coagulability of the blood; haemolysis. 1. Dissolution of the red blood corpuscles with diminished coagulability of the blood; haemolysis.(Physiol.)