Cougar is a slang term that refers to a woman who seeks sexual relations with considerably younger men.
zona - (anatomy) any encircling or beltlike structure zone anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; he has good bone structure
Shiona is also a form of the Irish, Scottish, English, Gaelic, Hebrew, and Indian Shona. Shiona is infrequently used as a baby name for girls. It is not ranked within the top 1000 names.