a : something that is formed by casting inside a mold or form: such as (one) : a replica (as of the statue) in metallic or plaster : casting (two) : a fossil copy of the details of a natural item by mineral infiltration b : an effect taken from an item by using a liquid or plastic material : mildew They produced a mask from a wax cast of her face.

off the depression scrap and junk indicate throwing absent or breaking up as worthless in existent form.

discard implies the permitting go or throwing absent of something check here that has grown to be worthless or superfluous even though typically not intrinsically valueless.