separate out vs filtrate

separate out is not a noun while filtrate is a noun.

Word	Noun	Adjective	Verb	Adverb
separate out	No	No	Yes	No
filtrate	Yes	No	Yes	No

As verbs, separate out and filtrate are synonyms defined as:

Other synonyms of separate out include filter, filter out, strain.

separate out (noun)	filtrate (noun)
	the product of filtration; a gas or liquid that has been passed through a filter

separate out (verb)	filtrate (verb)
remove by passing through a filter	remove by passing through a filter