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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.

More discussions about activate
References in periodicals archive ?
Incorporating the latest technology, Spiroflow's bin activator has integral vibrating blades to maintain a steady momentum and minimise bridging.
They found that while the noise enhancers could not cause reactivation on their own, 75 percent of them could synergize with activators and increase viral reactivation relative to activator alone.
This desirable outcome points to the important role IL-33 and other immune activators may play in combination with Inovio's cancer treatments in development.
Through this collaboration, we intend to jointly investigate the potential role that CK-2127107 and follow-on skeletal muscle activators can play in providing functional improvements in patients with diseases characterized by muscle weakness and fatigue.
PAION's most advanced drug candidate, Desmoteplase, a novel plasminogen activator for the treatment of acute ischaemic stroke is partnered with Forest Laboratories, Inc.
Number of positives Sensitivity Specificity Food and grass activators HY*TEC BHR vs Skin prick tests 16 87.
Much like a Board of Directors, Trellist's Board of Activators provides advisement and governance to guide business activities, but unlike a traditional Board of Directors, the Activators also operate within the firm's unique business structure, driving and participating in the daily business activity and opportunities.
In addition to the web, The Activators can also be seen in an exclusive mobile video series (text ACTIVATORS to 21534), an obstacle course at the Westfield Topanga Mall (Canoga Park, CA) called "The Activator Challenge," and live shows throughout southern California.
Conversion of natural plasminogen to plasmin (the active fibrinolytic enzyme) occurs on cleavage by a specific plasminogen activator.
This compounder and mixer of high performance fluoroelastomer products has developed a line of pre-dispersed fluoroelastomer activators specifically for fabricators who elect to mix all or some of their FKM requirements.
Though, in the 1970s, researchers demonstrated that these cells could also be activated to attack tumor cells, a problem developed over how to deliver the activators so that they wouldn't cause undue toxicity or degrade too quickly.
To activate autophagy, the process of self-digestion by a cell, is the crucial discovery of the research, according to Tsai adding that autophagy activators rescue and alleviate pathogensis of a mouse model with protein pathies of the TAR DNA-binding protein 43 (TDP-43), a neuronal activity, which is the main syndrome of FTLD.