Definition of "rituximab" [rituximab]

• A chimeric monoclonal antibody against the protein CD20, used in the treatment of lymphomas, leukemias, and some autoimmune disorders. (noun)

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• "Rituxan, known generically as rituximab, is made by Genentech, a unit of Roche Holding AG and Biogen Idec Inc."
• "Newer therapies are emerging as more promising, perhaps the most impressive of which is Rituxan, also known as rituximab, now being used to treat those with multiple sclerosis and other autoimmune diseases."
• "MabThera, sold in the U.S. by Genentech Inc. under the brand name Rituxan and generically known as rituximab, is Roche's best-selling drug."