rituximab

R1I1T1U1X8I1M3A1B3
US/ɹɪˈtʌk.sɪˌmæb/

noun

A chimeric monoclonal antibody (trademark Rituxan) administered by intravenous injection especially to treat non-Hodgkin lymphoma and chronic lymphocytic leukemia by binding to the protein CD20 found on the surface of B cells and causing their lysis.

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Meanings

nounrituximab (usually uncountable, plural rituximabs)

plural rituximabs · alternative IDEC-C2B8

  1. uncountableusuallymedicineA chimeric monoclonal antibody (trademark Rituxan) administered by intravenous injection especially to treat non-Hodgkin lymphoma and chronic lymphocytic leukemia by binding to the protein CD20 found on the surface of B cells and causing their lysis.

Origin

From [Term?] + -tu- (“tumor”) + -ximab (“chimeric monoclonal antibody”).

Full word history & related roots →
Cite this entry
APA

rituximab. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rituximab

MLA

“rituximab.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rituximab. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rituximab,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rituximab.

Source: rituximab on Wiktionary, CC BY-SA 4.0.