speculum

noun
UK /ˈspɛkjʊləm/
US /ˈspɛkjələm/

A special hand mirror, especially one used by doctors to look inside the body.

The doctor used a small speculum to look inside the patient's ear.


OTHER MEANINGS

2. A medical tool that holds an opening of the body open so a doctor can see inside.

The nurse handed the doctor a speculum for the examination.

3. A bright patch of color on the wing of certain ducks and other birds.

You can see the blue speculum on the duck's wing when it flies.

4. An old word for a mirror made of polished metal.

The knight polished his bronze speculum until it shone.