metycaine n a compound used in the form of its hydrochloride as a local or spinal anesthetic Usage(s) The new method of effecting painless childbirth by continued injections of metycaine in the caudal area just below the spinal column (PTI, Sept. metycaine, intracaine or other similar local anesthetics. Local and spinal anesthetics include cocaine (very toxic, as well as habit-forming), novocain, metycaine. Synonym(s) piperocaine piperocaine hydrochloride Metycaine