disinfectant vs bactericidal

disinfectant is a noun but bactericidal is not a noun.

Word	Noun	Adjective	Verb	Adverb
disinfectant	Yes	Yes	No	No
bactericidal	No	Yes	No	No

As adjectives, disinfectant and bactericidal are synonyms defined as:

disinfectant and bactericidal: preventing infection by inhibiting the growth or action of microorganisms

Other synonyms of disinfectant include germicidal.

disinfectant (noun)	bactericidal (noun)
an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease

disinfectant (adjective)	bactericidal (adjective)
preventing infection by inhibiting the growth or action of microorganisms	preventing infection by inhibiting the growth or action of microorganisms