| 1. | Also, effecter. a person or thing that effects. |
| 2. | Physiology. an organ or cell that carries out a response to a nerve impulse. |
| 3. | Biochemistry. a substance, as a hormone, that increases or decreases the activity of an enzyme. |
ef·fect (ĭ-fěkt') n.
[Middle English, from Old French, from Latin effectus, from past participle of efficere, to accomplish : ex-, ex- + facere, to make; see dhē- in Indo-European roots.] ef·fect'er n., ef·fect'i·ble adj. Synonyms: These nouns denote an occurrence, situation, or condition that is caused by an antecedent. An effect is produced by the action of an agent or a cause and follows it in time: "Every cause produces more than one effect" (Herbert Spencer). |
effector ef·fec·tor (ĭ-fěk'tər)
n.
A muscle, a gland, or an organ capable of responding to a stimulus, especially a nerve impulse.
A nerve ending that carries impulses to a muscle, a gland, or an organ and activates muscle contraction or glandular secretion.