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Related to activates: activated charcoal, reacquainted


1. To render active.
2. To make radioactive.


tr.v. acti·vated, acti·vating, acti·vates
1. To set in motion; make active or more active.
2. Biology To convert (certain biological compounds) into biologically active derivatives.

ac′ti·va′tion n.
ac′ti·va′tor n.


See activation.


(1) To render something active.
(2) To make something radioactive.
Chemistry To convert a compound—e.g., a provitamin or enzyme—into an active form or different compound, in particular one that has a specific biologic action
Example, activation by UV light Ergosterol, lumisterol, tachysterol, vitamin D2


1. To render active.
2. To make radioactive.

activate (ak´tivāt),

v in orthodontics, to adjust an appliance so that it will exert effective force on the teeth and jaws.

Patient discussion about activate

Q. Are there any nice activities for adults with autism? I've been helping a very nice man of 45 of years old and I'm looking for some new things I can do with him in our time together. any ideas?

A. Autistic people react wonderfully with animals. for instance- i saw a group of severe Autistic teenagers going to swim with dolphins. the effect was amazing! taking him to the zoo, or even to the park to feed ducks, pet dogs, whatever.. could have a great effect on him.
hope i helped!
tell me how it went.

Q. what is a passive smoking? and is it dangerous as an active?

A. Passive smoking is the exposure to cigarettes smoke emitted from cigarettes smoke by other person. It's dangerous and may increase the risk to several diseases similar to active smoking (one's exposure to smoke emitted from the cigarettes he or she is smoking) although the risk is of lower magnitude. Example for passive smoking is children of smokers etc.

You may read more here:

Q. i swim a lot ! what are the advantages of swimming over other sport activities? on what part of the body does it work the most ?

A. its a good workout but your not really going to burn as much calories as a regular work out.

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References in periodicals archive ?
Maloney and Waxman (1999) showed that MEHP activates mouse and human PPAR[alpha] and [gamma] in a COS-1 cell-based transient trans-activation assay.
Moreover, when the researchers exposed fat cells to lipopolysaccharide (LPS), one of the bacterial components that activates TLR4, the cells began to make a related receptor, TLR2, and to synthesize secreted immune molecules such as interleukin-6.
Litx[TM] uses light-emitting diodes (LEDs) to activate the proprietary photoreactive drug LS11 (talaporfin sodium).
Our Netrac Activate application will enable the customer to generate greater revenues and help meet end-user demand for its services while lowering operational expenses and improving its operational efficiency," said Meir Lipshes, president and chief executive officer of TTI Telecom.
Geneticist En Li, now at Massachusetts General Hospital-East in Charlestown, says he and his co-workers showed for the first time that an embryo needs DNA methylation to selectively activate imprinted genes.
Inter-activatE receives service requests from United's billing system and activates these requests in United's Lucent Class 5E switch.
Before they reinfuse the white blood cell fraction, they expose it to ultraviolet light, which activates the psoralen for a few thousandths of a second.
Extensis is now shipping a free Suitcase plug-in for Adobe InDesign that automatically activates fonts used in InDesign documents.

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