tricyclic

tricyclic
tricyclic [trī sī′klik, trīsik′lik]
adj.
containing three fused rings of atoms in the molecule
n.
any of a major group of antidepressant drugs that have a tricyclic molecular structure

English World dictionary. . 2014.

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  • tricyclic — tri·cy·clic ( )trī sī klik, sik lik adj being a chemical with three usu. fused rings in the molecular structure and esp. a tricyclic antidepressant tricyclic n TRICYCLIC ANTIDEPRESSANT * * * tri·cyc·lic (tri sikґlik) ( siґklik) containing three… …   Medical dictionary

  • tricyclic — noun 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 • Syn: ↑tricyclic antidepressant, ↑tricyclic antidepressant drug •… …   Useful english dictionary

  • tricyclic — adjective Etymology: tri + cyclic Date: 1891 being a chemical with three usually fused rings in the molecular structure and especially a tricyclic antidepressant …   New Collegiate Dictionary

  • tricyclic — /truy suy klik, sik lik/, adj. 1. pertaining to or embodying three cycles. n. 2. Also called tricyclic antidepressant. Pharm. any of a group of pharmacologically active substances, as imipramine, that share a common three ring structure, used to… …   Universalium

  • tricyclic — /traɪˈsaɪklɪk/ (say truy suyklik) adjective 1. relating to or embodying three cycles. –noun 2. → tricyclic antidepressant …  

  • Tricyclic antidepressant — Tricyclic antidepressants (abbreviation TCAs) are a class of antidepressant drugs first used in the 1950s. They are named after the drugs molecular structure, which contains three rings of atoms (compare tetracyclic antidepressant). Example… …   Wikipedia

  • Tricyclic antidepressant — One of a class of medications used to treat depression. The tricyclic antidepressants are also used for some forms of anxiety, fibromyalgia, and the control of chronic pain. Tricyclic refers to the presence of three rings in the chemical… …   Medical dictionary

  • tricyclic antidepressant — noun 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 • Syn: ↑tricyclic, ↑tricyclic antidepressant drug • Hypernyms:… …   Useful english dictionary

  • tricyclic antidepressant drug — noun 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 • Syn: ↑tricyclic, ↑tricyclic antidepressant • Hypernyms:… …   Useful english dictionary

  • tricyclic antidepressant — noun Date: 1966 any of a group of antidepressant drugs (as imipramine and amitriptyline) that contain three fused benzene rings, potentiate the action of catecholamines (as norepinephrine and serotonin) by inhibiting their uptake by nerve endings …   New Collegiate Dictionary

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