ac·ti·vate

(ăk′tə-vāt′)

tr.v. ac·ti·vat·ed, ac·ti·vat·ing, ac·ti·vates

1. To set in motion; make active or more active.

2. To organize or create (a military unit, for example): activate the National Guard.

3. To treat (sewage) with aeration and bacteria to aid decomposition.

4. Chemistry To accelerate a reaction in, as by heat.

5. Physics To make (a substance) radioactive.

6. Biology To convert (a molecule or cell) into a form that carries out a specific action: activate an enzyme; activate B cells.

ac′ti·va′tion n.

ac′ti·va′tor n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ac•ti•va•tor

(ˈæk təˌveɪ tər)

n.

1. a person or thing that activates.

2. Chem., Biochem. a catalyst.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription

substance - the real physical matter of which a person or thing consists; "DNA is the substance of our genes"

biological science, biology - the science that studies living organisms

activating agent - (mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral

catalyst, accelerator - (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

sensitiser, sensitizer - (chemistry) a substance other than a catalyst that facilitates the start of a catalytic reaction

inhibitor - a substance that retards or stops an activity

Translations

attivatore

aktivator

activator

[ˈæktɪˌveɪtəʳ] N → activador m

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

activator

n activador m

Mentioned in

References in periodicals archive

Food and Drug Administration has granted Orphan Drug Designation for BXCL701, an investigational orally-available systemic innate immunity activator with dual mechanisms of action, for the treatment of Acute Myeloid Leukemia.

BioXcel Therapeutics receives Orphan Drug Designation for BXCL701

Much of the hype is justified, as CBD is a nonpsychoactive activator of the endocannabinoid system (ECS), which, we are learning, is critical to maintaining balance in virtually every biological system in the human body.

Emerald Health offers cannabis-free option

Illinois Farm Bureau (IFB) ACTIVATOR today announced it has endorsed State Representative Avery Bourne in the race for the 95th District and designated her a Friend of Agriculture.

Rep. Bourne endorsed and named Friend of Agriculture by Illinois Farm Bureau

In the current study, the Wunderer's activator and face mask were used for the correction of skeletal Class III in growing patients to overcome the latter side effects of these appliances.

Correction of Skeletal Class III by Wunderer's Activator and Face Mask

Because we found that memantine (1) and donepezil (2) are a potent activator of hCAI and hCAII.

Activation of Two Different Drugs Used in Alzheimer's Disease Treatment on Human Carbonic Anhydrase Isozymes I and II Activity: an In Vitro Study/Alzheimer Hastaliginin Tedavisinde Kullanilan Iki Farkli Ilacin Insan Karbonik Anhidraz I ve II Izoenzim Aktiviteleri Uzerindeki Aktivasyonu: In Vitro Calisma

Users simply fill each Scent-inal diffuser with a Scent-inal activator and then attach it to plants.

10. Deer repellent system

Spiroflow has launched a new bin activator into the UK market that will help manufacturers in process industries such as food, beverage, chemicals, plastic and oil and gas to eliminate material flow problems that can lead to potentially dangerous blockages in factory piping or tubing applications.

Spiroflow unveils new bin activator

Therefore, the aim of this study was to evaluate the use of varied volumes of cryopreserved sperm, different activator solutions and contact times ofthese solutions with gametes of dourado to determine the impact of each parameter on the fertilization rate.

Cryopreserved sperm for oocyte fertilization of dourado Salminus brasiliensis/Semen criopreservado na fertilizacao de ovocitos de dourado Salminus brasiliensis

Although there are a number of functional appliances used by clinicians, this review will emphasize the activator, and the functional regulator used to correct Class II malocclusions.

Functional appliances: the activator and the functional regulator--a review