1: effective or operating as a cause or agent
causative bacteria of cholera
2: expressing causationspecifically: being a linguistic form that indicates that the subject causes an act to be performed or a condition to come into being
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'causative.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Middle English causatyf (as noun; Old Scots causative as adjective), borrowed from Medieval Latin causātīvus, going back to Late Latin, "expressing reason, of a cause," from Latin causātus (past participle of causārī "to plead an action in law, plead as an excuse") + -īvus-ive — more at cause entry 2