AskDefine | Define effector

Dictionary Definition



1 one who brings about a result or event; one who accomplishes a purpose [syn: effecter]
2 a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
3 an organ (a gland or muscle) that becomes active in response to nerve impulses [ant: sense organ]

User Contributed Dictionary



  1. Any muscle, organ etc. that can respond to a stimulus from a nerve.
  2. The part of a nerve that carries a stimulus to a muscle etc.
  3. Any small molecule that effects the function of an enzyme by binding to an allosteric site.

Related terms

Extensive Definition

Effector may refer to:
effector in Polish: Efektor
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