acouasm

[ uh-koo-az-uh m, ak-oo-az- ]
/ əˈku æz əm, ˈæk uˌæz- /

noun Psychiatry.

a nonverbal auditory hallucination, as a ringing or hissing.
Also acoasm, acousma.

Origin of acouasm

< Greek ákou(sma) something heard ( akous-, stem of akoúein to hear + -ma resultative noun suffix) + -asm as in enthusiasm, orgasm, etc.