Origin: Greek prefix mono-
Monoclonal has 4 different meanings across 2 categories:
any of a class of antibodies produced in the laboratory by a single clone of cells or a cell line and consisting of identical antibody molecules
"Doctors administered monoclonal antibodies to target the cancer cells specifically because they are all identical molecules created from a single clone."
something produced from a single clone, especially a monoclonal antibody
"The laboratory developed new monoclonal antibodies that could target and neutralize the virus more effectively than previous treatments."
forming or derived from a single clone
"The new cancer treatment relies on monoclonal antibodies that are all formed from a single cellular clone to target the tumor precisely."
genetically engineered from a single clone; used especially of a protein or antibody
"The new treatment relies on monoclonal antibodies that are genetically engineered to target only a specific cancer cell."