A lamp is a device that makes light and heat. Lamps usually work with electricity, using a lightbulb. In the United States, a lamp is usually considered a desk lamp or floor lamp. Other sources of light are called 'lights', such as streetlights, flashlights, and headlights, which in some countries are called streetlamps, torches and headlamps.
- "Definition of lamp". Merriam-Webster dictionary. Retrieved 2007-08-08.