competent
Definition: (adjective) having the skill and knowledge needed for a particular task; capable
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ef·fec·tor
 (  -f  k  t  r)
KEY
NOUN:
- A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.
- A nerve ending that carries impulses to a muscle, gland, or organ and activates muscle contraction or glandular secretion.
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Biochemistry
A small molecule that when bound to an allosteric site of an enzyme causes either a decrease or an increase in the activity of the enzyme.
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Computer Science
A device used to produce a desired change in an object in response to input.
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