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activator

/ˈæktɪveɪtər/ /ˈæktəveɪtər/

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noun

One who, or that which, activates.

Examples :

"The enzyme in the laundry detergent acted as an activator, helping to break down the stain. "

action device machine chemistry biology

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noun

Something that activates a catalyst

Examples :

"The water was the activator that started the yeast's fermentation process in the bread dough. "

chemistry substance compound science

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noun

Any chemical or agent which regulates one or more genes by increasing the rate of transcription.

Examples :

"In biology class, we learned that an activator molecule can switch on a gene, making the cell produce a specific protein like insulin. "

biochemistry biology organism chemistry function

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noun

A type of effector that increases the rate of enzyme-mediated reactions.

Examples :

"The enzyme needs an activator, like a key fitting into a lock, to speed up the digestion of food. "

biochemistry biology physiology

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noun

A type of dopant used in phosphors and scintillators.

Examples :

"The bright glow of the emergency exit sign is due to the activator in the phosphor coating. "

material chemistry physics science electronics

Illustration activator - Image 1

noun

An agent that enables the flotation of a mineral or minerals.

Examples :

"In the copper mine, the activator chemical allows the valuable copper minerals to stick to the air bubbles, separating them from the unwanted rock. "

material chemistry geology industry mineral