coccobacillus vs true bacteria

coccobacillus and true bacteria both are nouns.

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

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

coccobacillus: a bacterial cell intermediate in morphology between a coccus and a bacillus; a very short bacillus
true bacteria: a large group of bacteria having rigid cell walls; motile types have flagella

Other hypernyms of coccobacillus include eubacteria, eubacterium.

coccobacillus (noun)	true bacteria (noun)
a bacterial cell intermediate in morphology between a coccus and a bacillus; a very short bacillus	a large group of bacteria having rigid cell walls; motile types have flagella