tricyclic

adjective

1. (chemistry) Having three rings of atoms in the molecule.

- a tricyclic antidepressant

- Anthracene is tricyclic.

noun

1. an antidepressant drug that acts by blocking the reuptake of norepinephrine and serotonin and thus making more of those substances available to act on receptors in the brain

Definition categories: man–made, antidepressant