Source: http://www.medicinenet.com/medterms-medical-dictionary/article.htm
MedTerms is the Medical Dictionary of MedicineNet.com
Monoclonal antibody: An antibody produced by a single clone of cells. A monoclonal antibody is therefore a single pure type of antibody. Monoclonal antibodies can be made in large quantities in the laboratory and are a cornerstone of immunology. Monoclonal antibodies are increasingly coming into use as therapeutic agents.
Source: MedTerms™ Medical Dictionary
