melphalan

mel·pha·lan

noun \ˈmel-fə-ˌlan\

Definition of MELPHALAN

: an antineoplastic drug C₁₃H₁₈Cl₂N₂O₂ that is a derivative of nitrogen mustard and is used especially in the treatment of multiple myeloma—called also L-PAM, phenylalanine mustard, sarcolysin