Activate meaning

ăk'tə-vāt'
The definition of activate means to start something.

An example of activate is when the “play” button is pushed on the DVD player and it starts to play the disk.

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To set in motion; make active or more active.
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To organize or create (a military unit, for example).

Activate the National Guard.

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To accelerate a reaction in, as by heat.
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To convert (certain biological compounds) into biologically active derivatives.
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To make active; cause to engage in activity.
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To put (an inactive military unit) on an active status by assigning personnel, equipment, etc. to it.
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To make radioactive.
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To make capable of reacting or of accelerating a chemical reaction.
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To treat (sewage) with air so that aerobes will become active in it, thus purifying it.
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To set in motion; make active or more active.
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To convert a molecule or cell into a form that carries out a specific action.

Activate an enzyme; activate B cells.

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(1) See trigger.
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To put into action, to put to work.
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To turn on.
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To treat (sewage) with aeration and bacteria to aid decomposition.
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To make (a substance) radioactive.
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