TRICYCLIC


Meaning of TRICYCLIC in English

[ trʌɪ'sʌɪklɪk ]

■ adjective Chemistry having three rings of atoms in its molecule.

■ noun Medicine any of a class of antidepressant drugs having molecules with three fused rings.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.