Medical Definition of orange oil
: an essential oil from orange peel or orange flowers: asa: a yellow to deep orange oil obtained from the peel of the sweet fruit of the common cultivated orange (Citrus sinensis) and used chiefly as a flavor and perfume—called also sweet orange oilb: a similar but bitter pale yellow or yellowish brown oil from the peel of the fruit of the sour orange (Citrus aurantium)—called also bitter orange oil
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