Cougar (noun)

1. A large, tawny cat native to the Americas, typically smaller than a lion or tiger.
2. A middle-aged woman who seeks sexual relationships with much younger men.

Origin:

The word cougar is believed to originate from a tupi-guarani language of brazil, where it was called "suari".

Examples:

1. The cougar is a solitary and elusive predator.
2. She was labeled a cougar for dating men half her age.
3. The cougar is also known as the puma or mountain lion.
4. The cougar's scientific name is Puma concolor.
5. She was known as a cougar for her reputation of dating young men.