The Collaborative International Dictionary
Haema-
Haema- \H[ae]m"a-\ (h[e^]m"[.a]- or h[=e]"m[.a]-), Haemato- \H[ae]m"a*to-\ (h[e^]m"[.a]*t[-o]- or h[=e]"m[.a]*t[-o]-), Haemo- \H[ae]m"o-\ (h[e^]m"[-o]- or h[=e]"m[-o]-). [Gr. a"i^ma, a"i`matos, blood.] Combining forms indicating relation or resemblance to blood, association with blood; as, h[ae]mapod, h[ae]matogenesis, h[ae]moscope.
Note: Words from Gr. a"i^ma are written hema-, hemato-, hemo-, as well as h[ae]ma-, h[ae]mato-, h[ae]mo-.