nosepiece

noun

1. the part of a frame for eyeglasses that passes over the bridge of the nose.
2. the part of a microscope to which the objectives are attached.
3. a piece of armor serving as a protective cover for the nose.
4. a noseband.

noun

1. Also called: nasal a piece of armour, esp part of a helmet, that serves to protect the nose
2. the connecting part of a pair of spectacles that rests on the nose; bridge
3. the part of a microscope to which one or more objective lenses are attached
4. a less common word for noseband

n.

1. The part of a microscope, often rotatable, to which one or more objective lenses are attached.