hae ‧ ma ‧ tol ‧ o ‧ gy BrE AmE British English , hematology American English /ˌhiːməˈtɒlədʒi $ -ˈtɑː-/ noun [uncountable]
[ Date: 1800-1900 ; Origin: hemat- (from Greek haima ; HEMO- ) + -ology ]
the scientific study of blood
hae ‧ ma ‧ tol ‧ o ‧ gy BrE AmE British English , hematology American English /ˌhiːməˈtɒlədʒi $ -ˈtɑː-/ noun [uncountable]
[ Date: 1800-1900 ; Origin: hemat- (from Greek haima ; HEMO- ) + -ology ]
the scientific study of blood
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012