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activate - 3 dictionary results
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ac⋅ti⋅vate

  [ak-tuh-veyt]
Use activate in a Sentence
–verb (used with object), -vat⋅ed, -vat⋅ing.
1. to make active; cause to function or act.
2. Physics.
a. to render more reactive; excite: to activate a molecule.
b. to induce radioactivity.
3. to aerate (sewage) in order to accelerate decomposition of impure organic matter by microorganisms.
4. Chemistry.
a. to make (carbon, a catalyst, molecules, etc.) more active.
b. to hasten (reactions) by various means, as heating.
5. to place (a military unit or station) on an active status in an assigned capacity.
Origin:
1620–30; active + -ate 1

Related forms:
ac⋅ti⋅va⋅tion, noun

Synonyms:
1. actuate, start, turn on, set going.

Antonyms:
1. stop, halt, check.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ac·ti·vate   (āk'tə-vāt')   
tr.v.   ac·ti·vat·ed, ac·ti·vat·ing, ac·ti·vates
  1. To set in motion; make active or more active.
  2. To organize or create (a military unit, for example): activate the National Guard.
  3. To treat (sewage) with aeration and bacteria to aid decomposition.
  4. Chemistry To accelerate a reaction in, as by heat.
  5. Physics To make (a substance) radioactive.
  6. Biology To convert (certain biological compounds) into biologically active derivatives.
ac'ti·va'tion n., ac'ti·va'tor n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Activate

Ac"ti*vate\, v. t. To make active. [Obs.]
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : activate
Spanish: activar,
German: auslösen,
Japanese: 動きを起こさせる
More Translations »
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Actisite
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Activate Gmbh
 Get Activate Gmbh chemicals in North America with Ryan Scientific
 www.ryansci.com