halobacteria vs halophile

halobacteria and halophile both are nouns.

Word	Noun	Adjective	Verb	Adverb
halobacteria	Yes	No	No	No
halophile	Yes	No	No	No

As nouns, halophile is a hypernym of halobacteria; that is, halophile is a word with a broader meaning than halobacteria:

halobacteria: halophiles in saline environments such as the Dead Sea or salt flats
halophile: archaebacteria requiring a salt-rich environment for growth and survival

Other hypernyms of halobacteria include halophil.

halobacteria (noun)	halophile (noun)
halophiles in saline environments such as the Dead Sea or salt flats	archaebacteria requiring a salt-rich environment for growth and survival