pocketcomb vs pocket comb

pocketcomb and pocket comb both are nouns.

Word	Noun	Adjective	Verb	Adverb
pocketcomb	Yes	No	No	No
pocket comb	Yes	No	No	No

As nouns, pocketcomb and pocket comb are synonyms defined as:

pocketcomb and pocket comb: a small comb suitable for carrying in a pocket

pocketcomb (noun)	pocket comb (noun)
a small comb suitable for carrying in a pocket	a small comb suitable for carrying in a pocket