Home/Topics/General Medical Terms/circumcision General Medical Terms Reproductive, Pregnancy & Breast Health circumcision Listen Save Share Print Meaning of circumcision: Surgery to remove part or all of the foreskin (loose skin that covers the head of the penis). Definition of circumcision Surgery to remove part or all of the foreskin (loose skin that covers the head of the penis). Written and maintained by James Murray · Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations. Keep exploringRelated termsMore in General Medical Terms → Genetics & Molecular Biology PSA PSA is a protein measured in the blood that reflects prostate gland activity and can be elevated by cancer or noncancerous conditions. Read definition → Diseases & Disorders PCOS Despite the name, the defining problem is hormonal rather than the small follicles that scans pick up, and it reaches well beyond the ovaries. Read definition → Medications & Pharmacology DES A drug whose harms surfaced a generation later, in the children exposed before birth rather than in the women who were treated. Read definition → Diseases & Disorders erectile dysfunction Often the first visible sign of narrowed arteries elsewhere, which is why it is treated as a cardiovascular finding and not only a sexual one. Read definition →
Genetics & Molecular Biology PSA PSA is a protein measured in the blood that reflects prostate gland activity and can be elevated by cancer or noncancerous conditions. Read definition →
Diseases & Disorders PCOS Despite the name, the defining problem is hormonal rather than the small follicles that scans pick up, and it reaches well beyond the ovaries. Read definition →
Medications & Pharmacology DES A drug whose harms surfaced a generation later, in the children exposed before birth rather than in the women who were treated. Read definition →
Diseases & Disorders erectile dysfunction Often the first visible sign of narrowed arteries elsewhere, which is why it is treated as a cardiovascular finding and not only a sexual one. Read definition →