adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any tricyclic compound.
2. 2
   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 wordnet

Adjective

1. 1
   Having three rings of atoms in the molecule. not-comparable

   "a tricyclic antidepressant"

2. 2
   Of a flower: composed of three whorls or organs. not-comparable

Synonyms

All synonyms

tricyclic antidepressanttricyclic antidepressant drug

Etymology

From tri- + cyclic.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.