true slime mold vs myxomycete

true slime mold and myxomycete both are nouns.

Word	Noun	Adjective	Verb	Adverb
true slime mold	Yes	No	No	No
myxomycete	Yes	No	No	No

As nouns, true slime mold and myxomycete are synonyms defined as:

Other synonyms of true slime mold include acellular slime mold, plasmodial slime mold.

true slime mold (noun)	myxomycete (noun)
a slime mold of the class Myxomycetes	a slime mold of the class Myxomycetes