shivering. involuntary shaking of the body, as with cold. It is caused by contraction or twitching of the muscles, and is a physiologic method of heat production in humans and other mammals. As a form of aerobic skeletal muscle activity, vigorous shivering uses about as much energy as riding a bicycle or shoveling snow.
Pittosporum ( / p Éª Ë t É s p Éµ r Ém / or / Ë p Éª t Éµ Ë s p ÉÉr Ém /) [1] is a genus of about 200 species of flowering plants in the family Pittosporaceae. The genus is probably Gondwanan in origin; its present range extends from Australasia, Oceania, eastern Asia and some parts of Africa.
Nonporous Defined. Nonporous simply describes something that is not permeable to air, water or other fluids. If a surface such as a countertop is nonporous, it simply cannot contain any air or water within it. Pores are minute openings or crevices that allow air and water to flow to and fro; nonporous surfaces do just the opposite.