n. [ Gr. 'ao`ristos indefinite; 'a priv. + "ori`zein to define, &unr_; boundary, limit.] (Gram.) A tense in the Greek language, which expresses an action as completed in past time, but leaves it, in other respects, wholly indeterminate. [1913 Webster]
(n)a verb tense in some languages (classical Greek and Sanskrit) expressing action (especially past action) without indicating its completion or continuation
n. [ Gr. 'ao`ristos indefinite; 'a priv. + "ori`zein to define, &unr_; boundary, limit.] (Gram.) A tense in the Greek language, which expresses an action as completed in past time, but leaves it, in other respects, wholly indeterminate. [1913 Webster]