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activator

[ ak-tuh-vey-ter ]
/ ˈæk təˌveɪ tər /
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noun
a person or thing that activates.
Chemistry, Biochemistry. a catalyst.
any impurity in a mineral that causes luminescence.Compare inhibitor (def. 3).
Orthodontics. a removable appliance, usually of hard plastic, that is worn in the mouth instead of a fixed appliance to help align the teeth and improve the relationship of the lower jaw to the upper.
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Origin of activator

OTHER WORDS FROM activator

non·ac·ti·va·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use activator in a sentence

Medical definitions for activator

activator
[ ăktə-vā′tər ]

n.
An agent that renders another substance active or accelerates a process or reaction.
The fragment produced by chemical cleavage of a proactivator that induces the enzymatic activity of another substance.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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