01 v. t. To make inactive; to render ineffective; as, to deactivate a bomb; to deactivate a machine; to deactivate the alarm.
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1.
To make inactive; to render ineffective; as, to deactivate a bomb; to deactivate a machine; to deactivate the alarm.
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2.
To disband (a military unit, or other group); to discontinue (a group activity); as, to deactivate the regiment; to deactivate the investigation.