ofatumumab

== English == === Etymology === From -tum- (“tumor”) +‎ -umab (“human monoclonal antibody”). (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) === Noun === ofatumumab (uncountable) (pharmacology) A human monoclonal antibody targeting CD20, used to treat multiple sclerosis and certain types of chronic lymphocytic leukemia.