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Medical Definition of Phenoxazine
1. Phenothiazine in which S is replaced by O; as the 3-oxo derivative (phenoxazone), phenoxazine is the chromophore of actinomycins. (05 Mar 2000)
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1. Phenothiazine in which S is replaced by O; as the 3-oxo derivative (phenoxazone), phenoxazine is the chromophore of actinomycins. (05 Mar 2000)