definitive

/di-ˈfi-nə-tiv/

Middle English diffynytif, borrowed from Middle French & Medieval Latin; Middle French diffinitif "final, decisive," borrowed from Medieval Latin dēfīnītīvus, diffīnītīvus, going back to Latin dēfīnītīvus "involving definition," from dēfīnītus "limited, clearly defined" (past participle of dēfīnīre "to mark the limits of, determine, define-īvus -ive

adjective

  1. serving to provide a final solution or to end a situation

  2. authoritative and apparently exhaustive

  3. serving to define or specify precisely

a definitive victory

conclusive decisive determinative definitive mean bringing to an end. conclusive applies to reasoning or logical proof that puts an end to debate or questioning. decisive may apply to something that ends a controversy, a contest, or any uncertainty.

noun

  1. a postage stamp issued as a regular stamp for the country or territory in which it is to be used : a definitive postage stamp

noun

  1. the host in which the sexual reproduction of a parasite takes place