antidepressant

[ an-tee-di-pres-uh nt, an-tahy- ]
/ ˌæn ti dɪˈprɛs ənt, ˌæn taɪ- /
Pharmacology

adjective

of or relating to a substance that is used in the treatment of mood disorders, as characterized by various manic or depressive affects.

noun

Also called energizer, psychic energizer. any such substance, as a tricyclic antidepressant, MAO inhibitor, or lithium.
Also an·ti-de·pres·sant, an·ti·de·pres·sive [an-tee-di-pres-iv, an-tahy-] /ˌæn ti dɪˈprɛs ɪv, ˌæn taɪ-/.

Origin of antidepressant

First recorded in 1960–65; anti- + depressant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for antidepressant

British Dictionary definitions for antidepressant

antidepressant

/ (ˌæntɪdɪˈprɛsənt) /

noun

any of a class of drugs used to alleviate depression

adjective

of or relating to this class of drugs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for antidepressant

antidepressant

[ ăn′tē-dĭ-prĕsənt, ăn′tī- ]

n.

A drug used to prevent or treat depression.

Related forms

an′ti•de•pressant null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for antidepressant

antidepressant

[ ăn′tē-dĭ-prĕsənt, ăn′tī- ]

A drug used to prevent or treat depression.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.