purulence vs ichor

purulence and ichor both are nouns.

Word	Noun	Adjective	Verb	Adverb
purulence	Yes	No	No	No
ichor	Yes	No	No	No

As nouns, purulence and ichor are synonyms defined as:

Other synonyms of purulence include festering, pus, sanies, suppuration.

purulence (noun)	ichor (noun)
a fluid product of inflammation	a fluid product of inflammation
symptom of being purulent (containing or forming pus)	(Greek mythology) the rarified fluid said to flow in the veins of the Gods