adj. 1. Of, relating to, or characteristic of an orgy. 2. Arousing or causing unrestrained emotion; frenzied. [Greek orgiastikos, from orgiastēs, celebrant of orgies, from orgiazein, to celebrate orgies, from orgia, orgies; see ORGY.] orgi·ast′ n. or′gi·asti·cal·ly adv. |
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