- to make active; cause to function or act.
- to render more reactive; excite: to activate a molecule.
- to induce radioactivity.
- to aerate (sewage) in order to accelerate decomposition of impure organic matter by microorganisms.
- to make (carbon, a catalyst, molecules, etc.) more active.
- to hasten (reactions) by various means, as heating.
- to place (a military unit or station) on an active status in an assigned capacity.
Origin of activate
SynonymsSee more synonyms for activate on Thesaurus.com
1. actuate, start, turn on, set going.
1. stop, halt, check.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for activates
It activates your parasympathetic nervous system and tells your body to relax and recuperate.How to Master the Art of Breathing
April 14, 2014
It also has found a formula that activates and energizes hundreds of millions of people to believe in a better future.China’s Not the Big Trade Cheat Harming America’s Domestic Economy
March 19, 2012
The suggestion reaches your subconscious and activates you consciously to waken.A Practical Guide to Self-Hypnosis
- to make active or capable of action
- physics to make radioactive
- to increase the rate of (a reaction)
- to treat (a substance, such as carbon or alumina) so as to increase powers of adsorption
- physiol to prepare by arousal (the body or one of its organs (e.g. the brain)) for action
- to purify (sewage) by aeration
- US military to create, mobilize, or organize (a unit)
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
Word Origin and History for activates
Online Etymology Dictionary, © 2010 Douglas Harper