gum benzoin

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Related to Benzoin resin: Styrax benzoin

ben·zo·in

(ben'zō-in, ben'zoyn),
A balsamic resin obtained from Styrax benzoin (family Styracaceae), used as a stimulant expectorant, but usually by inhalation in laryngitis and bronchitis; it retards rancidification of fats and is used for this purpose in the official benzoinated lard.
[It. benzoino, fr. Ar. lubān jāwīy, Javan incense]

gum benzoin

n.