magnifier

One that magnifies, especially a magnifying glass.

A system of optical components that magnifies.

One who or that which magnifies or enlarges.

Specifically, an optical instrument that magnifies; a convex lens, a concave mirror, or a combination of lenses or mirrors, which increases the apparent magnitude of bodies.

One who, or that which, magnifies.

That which magnifies.

A magnifying glass.

a scientific instrument that magnifies an image