| 1. | Physiology, Medicine/Medical. a body organ, medicine, etc., that cooperates with another or others to produce or enhance an effect. |
| 2. | Chemistry, Pharmacology. any admixture to a substance for increasing the effectiveness of one or more of its properties. |
| 3. | Theology. a person who holds the doctrine of synergism. |
synergist syn·er·gist (sĭn'ər-jĭst)
n.
A synergistic organ, drug, or agent.