anal

Having to do with the anus. The anus is the opening of the rectum (last part of the large intestine) to the outside of the body. … [Read more...]

anal cancer

Cancer that forms in tissues of the anus. The anus is the opening of the rectum (last part of the large intestine) to the outside of the body. … [Read more...]

anal Pap smear

A procedure in which cells are scraped from the lining of the anus (the opening of the rectum to the outside of the body) and looked at under a microscope. It … [Read more...]

anal Pap test

A procedure in which cells are scraped from the lining of the anus (the opening of the rectum to the outside of the body) and looked at under a microscope. It … [Read more...]

analgesia

Pain relief. … [Read more...]

analgesic

A drug that reduces pain. Analgesics include aspirin, acetaminophen, and ibuprofen. … [Read more...]

analog

In chemistry, a substance that is similar, but not identical, to another. … [Read more...]

analysis

A process in which anything complex is separated into simple or less complex parts. … [Read more...]

anaphylactic shock

A severe and sometimes life-threatening immune system reaction to an antigen that a person has been previously exposed to. The reaction may include itchy skin, … [Read more...]

anaplastic

A term used to describe cancer cells that divide rapidly and have little or no resemblance to normal cells. … [Read more...]