tricyclic

adjective
tri·cy·clic | \ (ˌ)trī-ˈsī-klik , -ˈsi-klik \

Definition of tricyclic 

: being a chemical with three usually fused rings in the molecular structure and especially a tricyclic antidepressant

First Known Use of tricyclic

1891, in the meaning defined above

History and Etymology for tricyclic

tri- + cyclic

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The first known use of tricyclic was in 1891

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More Definitions for tricyclic

tricyclic

adjective
tri·cy·clic | \ (ˈ)trī-ˈsī-klik, -ˈsik-lik \

Medical Definition of tricyclic 

(Entry 1 of 2)

: being a chemical with three usually fused rings in the molecular structure and especially a tricyclic antidepressant

tricyclic

noun

Medical Definition of tricyclic (Entry 2 of 2)

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