effector

n. person or thing that effects, something which activates, something which carries out

Effector may refer to:An actuator, in roboticsEffector, a music album by the Experimental Techno group DownloadEffector cell, a type of lymphocyte in immunologyEffector (biology), a small molecule that binds to a macromoleculeEffector protein: in a signalling pathway, if protein A switches on protein B, and if protein B then switches on/activates/recruits proteins C, D and E, then proteins C, D and E are known as the effectors of protein B.
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The Electronic Frontier Foundation (EFF) is an international non-profit advocacy and legal organization based in the United States with the stated purpose of being dedicated to preserving free speech rights such as those protected by the First Amendment to the United States Constitution in the context of today's digital age. Its stated main goal is to educate the press, policymakers and the general public about civil liberties issues related to technology; and to act as a defender of those liberties. The EFF is supported by donations and is based in San Francisco, California, with staff members in Toronto, Ontario and Washington, D.C. and Brussels, the seat of the European Union. They are also accredited observers at the World Intellectual Property Organization. EFF has taken action in several ways; it provides or funds legal defense in court, defends individuals and new technologies from the chilling effects of what it considers baseless or misdirected legal threats, provides guidance to the government and courts, organizes political action and mass mailings, supports some new technologies which it believes preserve personal freedoms, maintains a database and web sites of related news and information, monitors and challenges potential legislation that it believes would infringe on personal liberties and fair use, and solicits a list of what it considers patent abuses with intentions to defeat those that it considers without merit.
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Noun
1. one who brings about a result or event; one who accomplishes a purpose
(synonym) effecter
(hypernym) person, individual, someone, somebody, mortal, human, soul
(derivation) effect
2. a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
(hypernym) nerve fiber, nerve fibre
(part-meronym) end-plate, endplate, motor end plate
3. an organ (a gland or muscle) that becomes active in response to nerve impulses
(antonym) sense organ, sensory receptor, receptor
(hypernym) organ

n. effector, person or thing that effects

(n.)
An effecter.