follow Dictionary.com

Fiancé or fiancée? What's the difference?

psychoactive

[sahy-koh-ak-tiv] /ˌsaɪ koʊˈæk tɪv/
adjective
1.
of or relating to a substance having a profound or significant effect on mental processes:
a psychoactive drug.
Origin of psychoactive
1960-1965
1960-65; psycho- + active
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for psychoactive
British Dictionary definitions for psychoactive

psychoactive

/ˌsaɪkəʊˈæktɪv/
adjective
1.
capable of affecting mental activity: a psychoactive drug
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
Cite This Source
Word Origin and History for psychoactive
adj.

also psycho-active, 1959, from psycho- + active.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
psychoactive in Medicine

psychoactive psy·cho·ac·tive (sī'kō-āk'tĭv)
adj.
Affecting the mind or mental processes. Used of a drug.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for psychoactive

Few English speakers likely know this word

Word Value for psychoactive

0
29
Scrabble Words With Friends