halophil vs halobacter

halophil and halobacter both are nouns.

Word	Noun	Adjective	Verb	Adverb
halophil	Yes	No	No	No
halobacter	Yes	No	No	No

As nouns, halobacter is a hyponym of halophil; that is, halobacter is a word with a more specific, narrower meaning than halophil:

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

Other hyponyms of halophil include halobacteria, halobacterium.

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