Things or substances that cause something else to become active or to function.
From 'activate' + '-or' (suffix for agents that perform an action) + '-s' (plural). A scientific term that became standard in biochemistry and molecular biology.
Enzymes are activators—tiny molecular machines that speed up chemical reactions in your cells. Without them, you couldn't digest food, breathe, or think. Your body is basically a symphony of molecular activators working in perfect harmony.
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