Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.


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.


(ˈæk təˌveɪ tər)

1. a person or thing that activates.
2. Chem., Biochem. a catalyst.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.activator - (biology) any agency bringing about activationactivator - (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


[ˈæktɪˌveɪtəʳ] Nactivador m


n activador m
References in periodicals archive ?
Sybase and Mirror Activator are trademarks or registered trademarks of Sybase, Inc.
The presentations will include data on the impact of a new chemical activator of SIRT1, an enzyme shown to increase insulin sensitivity and improve glucose levels when stimulated in pre-clinical models of Type 2 Diabetes.
published a review in Molecular Cell entitled "AROuSing SIRT1: Identification of a novel endogenous SIRT1 activator.
amp; BAGSVAERD, Denmark -- TransTech Pharma and Novo Nordisk A/S (NYSE: NVO)(CSE: NVO) announced today an agreement whereby TransTech has obtained an exclusive license from Novo Nordisk to its clinical glucokinase activator (GKA) program.
Additionally, the offering will include a dedicated bathroom activator to enhance the ability to summon assistance from the area in the home where many falls occur.
3] Management of Class II malocclusion using functional appliances has become popular since the introduction of activator by Andersen.
a leading Canadian Clean-Tech company, developer and manufacturer of state-of-the-art microbial technology-based products for sustainable agriculture and mining, has completed country registration of Soil Activator for all of Central America.
Global Markets Direct's, 'Plasminogen Activator Inhibitor-1 (Endothelial Plasminogen Activator Inhibitor or Serpin E1 or PAI-1) - Pipeline Review, H1 2016', provides in depth analysis on Plasminogen Activator Inhibitor-1 (Endothelial Plasminogen Activator Inhibitor or Serpin E1 or PAI-1) targeted pipeline therapeutics.
Users simply fill each Scent-inal diffuser with a Scent-inal activator and then attach it to plants.
In both cases, there is no contact between the sensing element and the small metal "target," which acts as the activator and attaches to the moving element in the assembly.
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.
Umbel, on the other hand, puts the data collection and segmentation process back into the hands of companies through audience activator apps that marketers can deploy themselves.

Full browser ?