I. combining form
or homo-
Etymology: Latin, from Greek, from homos — more at same
1. : one and the same : similar : alike
homo geneous
hom onym
— opposed to heter-
2. : homologous with a (specified) organic compound especially with a formula containing one carbon and two hydrogen atoms CH 2 more than the compound to whose name the prefix is added
homo serine HOCH 2 CH 2 CH(NH 2 )COOH
3. : from the same species : corresponding in type of structure
homo graft
homo lysin
II. combining form
or homo-
: homosexual
homo phobia