a : something which is fashioned by casting inside a mould or form: for example (one) : a reproduction (as of the statue) in metallic or plaster : casting (2) : a fossil copy of the main points of a pure object by mineral infiltration b : an impact taken from an item with a liquid or plastic material : mould They made a mask from a go here wax cast of her deal with.

: a mass of plastic issue shaped in cavities of diseased organs (given that the kidneys) and discharged from the body

a : an overspread of the colour or modification of the looks of a compound by a trace of some additional hue : shade grey having a greenish cast