'Perfective' definitions:

Definition of 'perfective'

From: WordNet
noun
A tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect) [syn: perfective, perfective tense, perfect, perfect tense]
noun
The aspect of a verb that expresses a completed action [syn: perfective, perfective aspect]

Definition of 'Perfective'

From: GCIDE
  • Perfective \Per*fect"ive\ (p[~e]r*f[e^]k"t[i^]v), a.
  • 1. Tending or conducing to make perfect, or to bring to perfection; -- usually followed by of. "A perfective alteration." --Fuller. [1913 Webster]
  • Actions perfective of their natures. --Ray. [1913 Webster]
  • 2. (Gram.) Denoting an aspect of verbs which indicates completion of an action, and is sometimes explicitly marked in verbal inflection, as in the Russian language; as, the perfective form of a verb. The use of a perfective form rather than the simple past indicates reference to a completed event, rather than to a process that took place in the past. [PJC]

Definition of 'perfective'

From: GCIDE
  • perfective \per*fect"ive\ (p[~e]r*f[e^]k"t[i^]v), n.
  • 1. (Gram.) The perfective case or aspect. [PJC]
  • 2. (Gram.) A verb in the perfective case or aspect. [PJC]