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activate

[′ak·tə‚vāt]
(electricity)
To make a cell or battery operative by addition of a liquid.
(electronics)
To treat the filament, cathode, or target of a vacuum tube to increase electron emission.
(engineering)
To set up conditions so that the object will function as designed or required.
(nucleonics)
To induce radioactivity through bombardment by neutrons or by other types of radiation.
(ordnance)
To bring into existence by official order a unit, post, camp, station, base, or shore activity which has previously been constituted and designated by name or number, or both, so that it can be organized to function in its assigned capacity.
To prepare for active service a naval ship or craft which has been in an inactive or reserve status.
(physics)
To start activity or motion in a device or material.

activate

(1) See trigger.

(2) To interact with an activation server at the time copy-protected software is installed. The install program generates a code that is sent to the activation server, which responds with an authorization code that allows the software to operate. Without the authorization code, the software generally times out.
References in periodicals archive ?
PPAR[gamma] is a key regulator of cell differentiation, and understanding that MEHP activates PPAR[gamma] provides further insight into the female reproductive toxicity of MEHP.
PPAR[gamma] plays a critical role in adipocyte differentiation, and it is likely that DEHP/MEHP activates PPAR[gamma] in tissues other than the liver to alter normal pathways of differentiation (Ward et al.
Peroxisome proliferators such as DEHP also activate expression of FABP in the liver (Kaikaus et al.
Although troglitazone is now off the market due to its hepatotoxicity, other thiazolidinediones that activate PPAR[gamma] are currently used as antidiabetic agents.
Kleeberger speculates that ozone initially injures cells in the lungs, inducing the release of molecules that activate TLR4 and create more damage through an immune reaction.
Strauss III of the University of Pennsylvania Medical Center in Philadelphia whose group reported last March that certain fragments of the clotting protein fibronectin activate TLR4.
The current data show that the rexinoid LG100754 possesses selectivity for RXR:PPAR heterodimers and does not activate many of the other RXR-containing heterodimers.

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