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
ZnO is a white powder that is insoluble in water, and it is widely used as an additive in numerous materials and products including rubbers, plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes.inc oxide depleted in the zinc isotope with the atomic mass 64 is used in corrosion prevention in nuclear pressurized water reactors. The depletion is necessary, because 64 Zn is transformed into radioactive 65 Zn under irradiation by the reactor neutrons.