caddis fly vs caddice fly

caddis fly and caddice fly both are nouns.

Word	Noun	Adjective	Verb	Adverb
caddis fly	Yes	No	No	No
caddice fly	Yes	No	No	No

As nouns, caddis fly and caddice fly are synonyms defined as:

caddis fly and caddice fly: small moth-like insect having two pairs of hairy membranous wings and aquatic larvae

Other synonyms of caddis fly include caddice-fly, caddis-fly.

caddis fly (noun)	caddice fly (noun)
small moth-like insect having two pairs of hairy membranous wings and aquatic larvae	small moth-like insect having two pairs of hairy membranous wings and aquatic larvae