comb-footed spider vs theridiid

comb-footed spider and theridiid both are nouns.

Word	Noun	Adjective	Verb	Adverb
comb-footed spider	Yes	No	No	No
theridiid	Yes	No	No	No

As nouns, comb-footed spider and theridiid are synonyms defined as:

comb-footed spider and theridiid: spider having a comb-like row of bristles on each hind foot

comb-footed spider (noun)	theridiid (noun)
spider having a comb-like row of bristles on each hind foot	spider having a comb-like row of bristles on each hind foot