ri·​tux·​i·​mab ri-ˈtək-si-ˌmab How to pronounce rituximab (audio)
: a genetically engineered monoclonal antibody that is administered by intravenous injection especially to treat non-Hodgkin lymphoma and chronic lymphocytic leukemia by binding to a receptor found on the surface of B cells and causing their lysis

Note: Rixtuximab is a chimeric monoclonal antibody prepared from humans and mice. It is marketed under the trademark Rituxan.

Dictionary Entries Near rituximab

Cite this Entry

“Rituximab.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/rituximab. Accessed 23 Mar. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

What Did You Just Call Me?

  • brown chihuahua sitting on the floor with squinting eyes looking at the camera
  • Before we went to her house, Hannah told us her aunt was a flibbertigibbet.
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?