odorization
noun
odor·iza·tion
| \ ˌōdərə̇ˈzāshən, -ˌrīˈz-\
plural -s
Definition of odorization
: the act or process of odorizing
reodorization of rubber and leather articles— A. C. Morrison
especially
: the act or process of odorizing gas
odor tests should be made on the gas at the point of odorization — Chemical Abstracts