automatic vs physiology

automatic and physiology both are nouns.

Word	Noun	Adjective	Verb	Adverb
automatic	Yes	Yes	No	No
physiology	Yes	No	No	No

automatic (noun)	physiology (noun)
self-loading rifle capable of automatic fire	processes and functions of an organism
a pistol that will keep firing until the ammunition is gone or the trigger is released	the branch of the biological sciences dealing with the functioning of organisms

automatic (adjective)	physiology (adjective)
operating with minimal human intervention; independent of external control
without volition or conscious control
resembling the unthinking functioning of a machine