slime bacteria vs true bacteria

slime bacteria and true bacteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
slime bacteria	Yes	No	No	No
true bacteria	Yes	No	No	No

As nouns, true bacteria is a hypernym of slime bacteria; that is, true bacteria is a word with a broader meaning than slime bacteria:

slime bacteria: bacteria that form colonies in self-produced slime; inhabit moist soils or decaying plant matter or animal waste
true bacteria: a large group of bacteria having rigid cell walls; motile types have flagella

Other hypernyms of slime bacteria include eubacteria, eubacterium.

slime bacteria (noun)	true bacteria (noun)
bacteria that form colonies in self-produced slime; inhabit moist soils or decaying plant matter or animal waste	a large group of bacteria having rigid cell walls; motile types have flagella