adj.1 famous or important in history or potentially so (a historic moment).
2 Gram. (of a tense) normally used in the narration of past events (esp. Latin & Greek imperfect and pluperfect; (cf. PRIMARY)).
3 archaic or disp. HISTORICAL.
Phrases and idioms:
historic infinitive the infinitive when used instead of the indicative. historic present the present tense used instead of the past in vivid narration.
Etymology: L historicus f. Gk historikos (as HISTORY)