Dictionary.com
definitions
  • synonyms

defining

[dih-fahy-ning]
adjective
  1. decisive; critically important: Taking a course in architecture was a defining turn in her life.
Show More
Related formsnon·de·fin·ing, adjectiveself-de·fin·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018