activator
Americannoun
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a person or thing that activates.
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Chemistry, Biochemistry. a catalyst.
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any impurity in a mineral that causes luminescence.
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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.
Other Word Forms
Etymology
Origin of activator
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
If too little of this gene activator is around, gene expression grinds to a halt, causing cells to die.
From Science Daily • Nov. 16, 2023
Müller says that tirzepatide might be a more potent activator of the GLP-1 receptor, and that GIP might help to make GLP-1’s side effects more tolerable, allowing for higher doses.
From Scientific American • Jan. 10, 2023
They added an activator handle on one end and a four-pronged claw on the other.
From New York Times • Jan. 1, 2023
There’s a unique role arts organizations can play as a cultural producer, community activator and convener.
From Seattle Times • Apr. 7, 2022
She sets the Cog in its installer and presses the activator.
From "The Last Cuentista" by Donna Barba Higuera
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
