• A form of medicine contained in a small piece of solid material, such as cocoa butter or glycerin, that melts at body temperature. A suppository is inserted into the rectum, vagina, or urethra and the medicine is absorbed into the bloodstream.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• A solid form of medication that is inserted in the rectum or vagina and absorbed into the bloodstream.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• (suppositories) Medicated dosage forms that are designed to be inserted into the rectal, vaginal, or urethral orifice of the body for absorption. Generally, the active ingredients are packaged in dosage forms containing fatty bases such as cocoa butter, hydrogenated oil, or glycerogelatin that are solid at room temperature but melt or dissolve at body temperature.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• (suppositorydrugform) A solid body of various weights and shapes, adapted for introduction into the rectal, vaginal, or urethral orifice of the human body; they usually melt, soften, or dissolve at body temperature.
  NCI Health Level 7 Vocabulary
  U.S. National Cancer Institute, 2018
• (suppository dosage form) A solid or semi-solid composed of active and/or inert ingredient(s) in a wax, fat or a glycerin gelatin jelly and that is conical or oval in shape. It is intended to be inserted into a body orifice.
  NCI
  U.S. National Cancer Institute, 2021