deactivate

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deactivate

(dē-ăk′tə-vāt′)
tr.v. deacti·vated, deacti·vating, deacti·vates
1. To render inactive or ineffective.
2. To inhibit, block, or disrupt the action of (an enzyme or other biological agent).
3. To remove from active military status.

de·ac′ti·va′tion n.
de·ac′ti·va′tor n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.