disturbance vs psychological medicine

disturbance and psychological medicine both are nouns.

Word	Noun	Adjective	Verb	Adverb
disturbance	Yes	No	No	No
psychological medicine	Yes	No	No	No

disturbance (noun)	psychological medicine (noun)
the act of disturbing something or someone; setting something in motion	the branch of medicine dealing with the diagnosis and treatment of mental disorders
a noisy fight
activity that is a malfunction, intrusion, or interruption
electrical or acoustic activity that can disturb communication
a disorderly outburst or tumult
(psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness
an unhappy and worried mental state