Main Entry: he·ma·tol·o·gy

Variant(s): or chiefly British hae·ma·tol·o·gy \ˌhē-mə-ˈtäl-ə-jē\

Function: noun

Inflected Form(s): plural he·ma·tol·o·gies

: a medical science that deals with the blood and blood-forming organs

—he·ma·tol·o·gist or chiefly British hae·ma·tol·o·gist \-jəst\ noun