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| ef·fec·tor [ i féktər ] (plural ef·fec·tors) |
noun |
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| Definition: |
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1. responding organ or muscle: a body part, e.g. a muscle or organ, that is activated by a stimulus, particularly a nerve impulse
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2. agent causing an effect: a substance, procedure, or agent that produces an effect, e.g. a nerve ending activating a muscle or a molecule affecting enzyme activity
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