Disactivate vs. Deactivate: What's the Difference?
"Disactivate" is a rarely used and generally incorrect term, while "deactivate" is the correct term meaning to make something inactive or turn it off.
Disactivate and Deactivate Definitions
Disactivate
(nonstandard) deactivate
Deactivate
To render inactive or ineffective.
Deactivate
To inhibit, block, or disrupt the action of (an enzyme or other biological agent).
Deactivate
To remove from active military status.
Deactivate
(ergative) to make something inactive or no longer effective
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Deactivate
To prevent the action of a biochemical agent (such as an enzyme)
Deactivate
To remove a person or piece of hardware from active military service
Deactivate
To make inactive; to render ineffective; as, to deactivate a bomb; to deactivate a machine; to deactivate the alarm.
Deactivate
To disband (a military unit, or other group); to discontinue (a group activity); as, to deactivate the regiment; to deactivate the investigation.
Deactivate
Remove from active military status or reassign;
The men were deactivated after five years of service
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Deactivate
Make inactive;
They deactivated the file