tran·quil·iz·er also tran·quil·liz·er (trăngkwə-līzər, trăn-)
n.
► One that serves to tranquilize, as soothing music.
► Any of various drugs used to reduce tension or anxiety; an antianxiety agent.
► Any of various drugs used to treat psychotic states; an antipsychotic drug. Not in scientific use.

[TahlilGaran] American Dictionary ▲