-merous

1.
a combining form meaning “having parts” of the kind or number specified by the initial element:
dimerous.
Compare -mer, -mere.
Origin
< Greek -meros, adj. derivative of méros part, portion, share; see -ous
British Dictionary definitions for -merous

-merous

combining form
1.
(in biology) having a certain number or kind of parts: dimerous
Word Origin
from Greek meros part, division