Dictionary
in•ac•ti•vate
Pronunciation: (in-ak'tu-vāt"), [key]—
v.t., -vat•ed, -vat•ing.
1. to make inactive:
The bomb was inactivated.
2. Immunol.to stop the activity of (certain biological substances).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.