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. [1913 Webster]

" A yellow aromatic honeylike substance, resembling, and often confounded with, storax, is obtained from the American sweet gum tree (Liquidambar styraciflua), and is much used as a chewing gum, called sweet gum, and liquid storax. Cf. Liquidambar." [1913 Webster]

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OXFORD DICTIONARY

Storax, n.
1 a a fragrant resin, obtained from the tree Styrax officinalis and formerly used in perfume. b this tree.
2 (in full Levant or liquid storax) a balsam obtained from the tree Liquidambar orientalis.

Etymology

L f. Gk, var. of STYRAX

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