effector

ef·fec·tor  (-fktr)

n.

1. A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse.

2. A nerve ending that carries impulses to a muscle, gland, or organ and activates muscle contraction or glandular secretion.

3. 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.

4. Computer Science A device used to produce a desired change in an object in response to input.

Thesaurus

Noun	1.	effector - one who brings about a result or event; one who accomplishes a purpose effecter individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do"
	2.	effector - a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion nerve fiber, nerve fibre - a threadlike extension of a nerve cell end-plate, endplate, motor end plate - the flattened end of a motor neuron that transmits neural impulses to a muscle
	3.	effector - an organ (a gland or muscle) that becomes active in response to nerve impulses organ - a fully differentiated structural and functional unit in an animal that is specialized for some particular function sense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation