2. a food or biochemical substance used by the body that must be supplied in adequate amounts from foods consumed. There are six classes of nutrients: water, proteins, carbohydrates, fats, minerals, and vitamins.
The noun WAXING has 2 senses: 1. the application of wax to a surface. 2. a gradual increase in magnitude or extent. Familiarity information: WAXING used as a noun is rare. â¢ WAXING (adjective). The adjective WAXING has 1 sense: 1. (of the moon) pertaining to the period during which the visible surface of the moon increases. Familiarity information: WAXING used as an adjective is very rare.
In materials science, quenching is the rapid cooling of a workpiece in water, oil or air to obtain certain material properties. A type of heat treating, quenching prevents undesired low-temperature processes, such as phase transformations, from occurring. It does this by reducing the window of time during which these undesired reactions are both thermodynamically favorable, and kinetically accessible; for instance, quenching can reduce the crystal grain size of both metallic and plastic material