noun
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the tree Santalum album (=Sirium myrtifolium) of Santalaceae family.
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its yellow, fragrant wood.
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the tree Aquilaria agallocha of Thymelacaceae family.
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its wood.
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a balsamic resin obtained from certain tropical Asiatic trees (genus Styrax of the storax family), used in medicine and perfumery and as incense; benzoin.
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any of various small plants composed of a particular fungus and a particular alga growing in an intimate symbiotic association and forming a dual plant, commonly adhering in coloured patches or spongelike branches to rock; lichen.