[¦tü ¦eth·əl¦byüd·əl ′al·kə‚hȯl] (organic chemistry) (C2H5)2CHCH2OH A stable, colorless liquid, miscible in most organic solvents, slightly water-soluble; used as a solvent for resins, waxes, and dyes, and in the synthesis of perfumes, drugs, and flavorings.