NOUN (1)

1. a psychoactive drug that tends to produce elation and euphoria;


ADJECTIVE (1)

1. tending to produce euphoria;

The Collaborative International Dictionary of English v.0.48:

euphoriant \euphoriant\ a.
   inducing euporia.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

euphoriant \euphoriant\ n.
   a substance which may induce euporia.
   [PJC]

WordNet (r) 3.0 (2006):

euphoriant
    adj 1: tending to produce euphoria
    n 1: a psychoactive drug that tends to produce elation and
         euphoria