Noah Webster's Dictionary (n.) Any one of a number of similar complex resins obtained from the bark of several trees and shrubs of the Styrax family. The most common of these is liquid storax, a brown or gray semifluid substance of an agreeable aromatic odor and balsamic taste, sometimes used in perfumery, and in medicine as an expectorant. Int. Standard Bible Encyclopedia STORAX sto'-raks. See POPLAR; STACTE.