Definition of "definitive" []

• Precisely defined or explicit. (adjective)
• Supplying or being a final settlement or decision; conclusive. See Synonyms at decisive. (adjective)
• Authoritative and complete: a definitive biography. See Usage Note at definite. (adjective)
• Biology Fully formed or developed, as an organ or structure. (adjective)
• Grammar A word that defines or limits, such as the definite article or a demonstrative pronoun. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Dr Patricio Bustos, who directs Chile's Medical Legal Service, announced the autopsy results, which he described as definitive."
• "If a disarmament and the group's dissolution were fully implemented, ETA's move—which it referred to as a "definitive" halt to armed activity, rather than a cease-fire—would represent a milestone in Spanish history."
• "WELNA: Holbrooke told Luger he would go from the hearing back to Afghanistan, where he said he did not yet see what he called a definitive turning point in either direction."