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effective date
effective duration
effective edge
effective margin
effective spread
effective striking price
effective tariff rate
effectively
effector
effects-based
effects box
effectual
effectuate
effeminate
effendi
efferent
efferent neuron
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effector

ef·fec·tor [ i féktər ] (plural ef·fec·tors)


noun 
Definition:
 
1. responding organ or muscle: a body part, e.g. a muscle or organ, that is activated by a stimulus, particularly a nerve impulse

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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