the mind > will > free will > choice or choosing > types of choice > [noun] > selecting from a number or for a purpose > separating valuable part from worthless > one who (2)
One who winnows; a person engaged in winnowing; also figurative (cf. winnowing, n. 1b).
figurative. spec. A person employed to remove or exclude books, documents, etc., regarded as superfluous or not worth retaining from a library…