speculum medical definition
noun pl. spec·u·lums or
spec·u·la - A mirror or polished metal plate that is used as a reflector in optical instruments.
- An instrument that is used to dilate the opening of a body cavity for medical examination.
(click for a larger image)
speculum
Top left to right: nasal and ear specula
Bottom left to right: rectal and vaginal specula
Learn more about speculum