magnifying glass
A convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the sun's radiation to create a hot spot at the focus for fire starting.
See also
The following tags are aliased to this tag: magnifying_glasses (learn more).
The following tags implicate this tag: holding_magnifying_glass (learn more).
