What is 7. (Med.) An artificial ulcer, usually made in the fleshy part of the arm or leg, to produce the secretion and discharge of pus for the relief of some affected part called?

issue — 7. (Med.) An artificial ulcer, usually made in the fleshy part of the arm or leg, to produce the secretion and discharge of pus for the relief of some affected part. (Webster's 1913.)