- conditioner (n.)
[conditioner 词源字典]
- c. 1600, "a bargainer," agent noun from condition (v.). Meaning "an agent that brings something into good condition" is from 1888; since c. 1960 usually in reference to hair care products. For about 20 years before that, it often was short for air conditioner.[conditioner etymology, conditioner origin, 英语词源]