a. [ Gr. e'y`chlwro`s fresh and green; e'y^ well + chlwro`s pale green. ] (Chem.) Relating to, or consisting of, euchlorine; as, euchloric gas. Davy. [ archaic ] [ 1913 Webster ]
adj. strongly experiencing a feeling of well-being; feeling euphoria. Opposite of dysphoric. [ Narrower terms: expansive ] Syn. -- elated, happy. [ WordNet 1.5 ]