spirochete vs treponema

spirochete and treponema both are nouns.

Word	Noun	Adjective	Verb	Adverb
spirochete	Yes	No	No	No
treponema	Yes	No	No	No

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

spirochete: parasitic or free-living bacteria; many pathogenic to humans and other animals
treponema: spirochete that causes disease in humans (e.g. syphilis and yaws)

Other hyponyms of spirochete include borrelia, Borrelia burgdorferi, Lime disease spirochete, leptospira.

spirochete (noun)	treponema (noun)
parasitic or free-living bacteria; many pathogenic to humans and other animals	spirochete that causes disease in humans (e.g. syphilis and yaws)