Definition of light on/upon
- Researchers have lit upon a solution.
- His eye lit on a story in the newspaper.
: something that makes vision possible
: the sensation aroused by stimulation of the visual receptors
: electromagnetic radiation of any wavelength that travels in a vacuum with a speed of 299,792,458 meters (about 186,000 miles) per second
: having light : bright
: not dark, intense, or swarthy in color or coloring : pale
: medium in saturation and high in lightness
: to become light : brighten
: to take fire
: to ignite something (such as a cigarette)
: having little weight : not heavy
: designed to carry a comparatively small load
: having relatively little weight in proportion to bulk
: with little baggage
: settle, alight
: to fall unexpectedly
: on the surface : on it
: thereafter, thereon
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