ctene vs comb-plate

ctene and comb-plate both are nouns.

Word	Noun	Adjective	Verb	Adverb
ctene	Yes	No	No	No
comb-plate	Yes	No	No	No

As nouns, ctene and comb-plate are synonyms defined as:

ctene and comb-plate: a locomotor organ consisting of a row of strong cilia whose bases are fused

ctene (noun)	comb-plate (noun)
a locomotor organ consisting of a row of strong cilia whose bases are fused	a locomotor organ consisting of a row of strong cilia whose bases are fused