fissi-

1.
a combining form meaning “cleft,” used in the formation of compound words:
fissiparous.
Origin
< Latin, combining form of fissus cloven, fissum fissure, special uses of past participle of findere to split
British Dictionary definitions for fissi-

fissi-

combining form
1.
indicating a splitting or cleft: fissirostral
Word Origin
from Latin fissus, past participle of findere to split