Tort-Feasor Definition: The person(s) who has committed a tort. Related Terms: Tort, Defendant Also presented without a hyphen, as in TortFeasor. As John Bouvier writes in the 1897 edition of Bouvier's Law Dictionary: "TortFeasor: a wrong-doer; one who commits or is guilty of a tort." REFERENCES: Duhaime, Lloyd, Tort & Personal Injury Law Categories & Topics: Tort and Personal Injury Law Dictionary Find you are constantly looking up definitions? Try our search provider (works in most modern browsers) If you find an error or omission in Duhaime's Legal Dictionary, or if you have legal term suggestion, we'd love to hear from you!