International Organization for Standardization Syllabification: (In·ter·na·tion·al Or·gan·i·za·tion for Stand·ard·i·za·tion)Definition of International Organization for Standardization an organization founded in 1946 to standardize measurements for international industrial, commercial, and scientific purposes. International Organization for Standardization in other Oxford dictionaries Definition of International Organization for Standardization in the British & World English dictionary