| pyriform | <anatomy> Pear-shaped. (15 Dec 1997) |
|---|---|
| pyriform aperture wiring | A method of wiring using the nasal bones at the area of the pyriform aperture for the stabilization of fractures of the jaw. (05 Mar 2000) |
| pyriform apparatus | A pear-shaped structure within the eggshell of certain tapeworms (family Anoplocephalidae), of uncertain function. (05 Mar 2000) |