EFFECTOR By N., Pam M.S. - April 7, 2013 1. An organ that produces an effect. 2. Motor nerve ending triggering an activity. 3. The part of the boy that interacts with the environment in an action. EFFECTOR: "Joe's hand was the effector in picking up the block." Related Psychology Terms SEDATIVE SENSORIMOTOR DEPRESSOR NERVE PACINIAN CORPUSCLE ANNULOSPIRAL ENDING CRANIAL NERVE INTRINSIC ACTIVITY CAUSAL LATENCY MOTOR AREA RAMUS Cite this page: N., Pam M.S., "EFFECTOR," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/effector/ (accessed August 5, 2020).