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
Definition of ZONATION. 1. : structure or arrangement in zones. 2. : distribution of kinds of organisms in biogeographic zones.efinition of ZONATION. 1. : structure or arrangement in zones. 2. : distribution of kinds of organisms in biogeographic zones.