Dictionarya•rab•i•nosePronunciation: (u-rab'u-nōs", ar'u-bu-), [key] —n. Chem. a white, crystalline, water-soluble solid, C5H10O5, obtained from plant gums or made synthetically from glucose, used chiefly as a culture medium in bacteriology. Also called pectin sugar, pectinose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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