- The definition of light is being pale, not deep or dark.
An example of light is the color of baby blue.
- Light is defined as radiation that acts upon on the retina of the eye to make site possible.
An example of light is the sun.
- Light means to make something burn or illuminate.
An example of light is to use a match to make a candle burn.
We get light from the sun.Licensed from iStockPhoto
- the form of electromagnetic radiation that acts upon the retina of the eye, optic nerve, etc., making sight possible: this energy is transmitted in a vacuum at a velocity of 299,792,458 meters per second (c. 186,000 miles per second)
- a form of radiant energy similar to this, but not acting on the normal retina, as ultraviolet and infrared radiation
- the rate of flow of light radiation with respect to the sense of sight: it is measured in lumens
- the sensation that light stimulates in the organs of sight
- brightness; illumination, often of a specified kind: the dim light of a candle
- a source of light, as the sun, a lamp, a light bulb, etc.
- traffic light
- the light from the sun; daylight or dawn
- a thing by means of which something can be started burning: a light for a cigar
- the means by which light is let in; window or windowpane
- mental illumination; knowledge or information; enlightenment: to shed light on the past
- spiritual inspiration
- public knowledge or view: to bring new facts to light
- the way in which something is seen; aspect: presented in a favorable light
- facial expression showing a mental or emotional state: a light of recognition in his eyes
- a person whose brilliant record makes him or her an example for others; outstanding figure: one of the shining lights of the school
- the quality suggesting light created in a painting, drawing, etc., esp. in certain areas
- such an area
Origin: Middle English liht from Old English lēoht, akin to German licht from Indo-European base an unverified form leuk-, to shine, bright from source Glassical Greek leukos, white, Classical Latin lux and amp; lumen, light, lucere, to shine, luna, moon, Welsh llug, gleam
- having light; not dark; bright
- pale in color; whitish; fair
Origin: ME liht < OE leoht
- to set on fire; ignite: to light a bonfire
- to cause to give off light: to light a lamp
- to give light to; furnish with light; illuminate: lamps light the streets
- to brighten; animate
- to show the way to by giving light: a beacon lights the ships to harbor
Origin: ME lighten < OE lihtan
- to catch fire: the fuse lighted at once
- to be lighted; brighten: usually with up
- having little weight; not heavy
- having little weight for its size; of low specific gravity
- below the usual or defined weight: a light coin
- less than usual or normal in amount, extent, intensity, force, etc.; specif.,
- striking or making contact with little force or impact: a light blow
- of less than the usual quantity or density: a light vote, a light rain
- not thick, coarse, or massive; delicate and graceful in structure: light tracery
- not violent or intense; mild: a light wind
- soft, muted, or muffled: a light sound
- not prolonged or intense: light applause
- not deep; easily disturbed: a light sleep
- of little importance; not serious or profound: light conversation
- easy to bear; not burdensome: a light tax
- easy to do; not difficult: light housekeeping
- not burdened with grief or sorrow; happy; buoyant: light spirits
- of a flighty nature; frivolous; capricious
- loose in morals; wanton
- dizzy; giddy
- of an amusing or nonserious nature: light reading
- containing little alcohol: light wine
- containing fewer calories than others of its kind: light beer
- characterized by qualities suggestive of little weight; not dense, hard, full, etc.; specif.,
- not as full as usual; moderate: a light meal
- easy to digest
- well leavened; soft and spongy: a light cake
- loose in consistency; easily crumbled; porous: light sand
- moving with ease and nimbleness: light on one's feet
- able to carry little weight or cargo: a light vehicle
- unstressed or slightly stressed: said of a syllable in phonetics, prosody, etc.
- designating or of an industry equipped with relatively light machinery and producing relatively small products
- designating, of, or equipped with weapons, armor, ships, etc. of a relatively small size or light weight
- lacking personnel; short-handed
- owing (a specified sum) to the pot in poker: light fifty cents
Origin: Middle English from Old English lēoht, akin to German leicht, Dutch licht from Indo-European an unverified form lengwhto- from base an unverified form legwh-, light inch(es) movement and weight from source Classical Latin levis, Glassical Greek elaphros
- with little luggage, cargo, etc.: to travel light
- Now Dial. to get down from a horse or vehicle; dismount; alight
- to come to rest after traveling through the air: ducks lighting on the pond
- to come or happen (on or upon) by chance
- to fall or strike suddenly, as a blow
Origin: ME lihten < OE līhtan: also aphetic for alight
- lightish adjective
Used by arrangement with John Wiley & Sons, Inc.
- Physics a. Electromagnetic radiation that has a wavelength in the range from about 4,000 (violet) to about 7,700 (red) angstroms and may be perceived by the normal unaided human eye.b. Electromagnetic radiation of any wavelength.
- The sensation of perceiving light; brightness: a sudden light that made me blink.
- a. A source of light, especially a lamp, a lantern, or an electric lighting fixture: Turn out the lights when you leave.b. The illumination derived from a source of light: by the light of the moon.c. The particular quantity or quality of such illumination: moved the lamp closer to get better light.d. The pathway or route of such illumination to a person: You're standing in his light.
- A mechanical device that uses illumination as a signal or warning, especially a beacon or traffic signal.
- a. Daylight.b. Dawn; daybreak.
- Something, such as a window, that admits illumination.
- Architecture One of two or more openings in a window divided by a mullion or mullions.
- A source of fire, such as a match or cigarette lighter.
- Spiritual awareness; illumination.
- a. Something that provides information or clarification: threw some light on the question.b. A state of awareness or understanding, especially as derived from a particular source: in the light of experience.
- Public attention; general knowledge: brought the scandal to light.
- A way of looking at or considering a matter; an aspect: saw the situation in a different light.
- Archaic Eyesight.
- lights One's individual opinions, choices, or standards: acted according to their own lights.
- A person who inspires or is adored by another: My daughter is the light of my life.
- A prominent or distinguished person; a luminary: one of the leading lights of the theater.
- An expression of the eyes: a strange light in her eyes.
- Light In Quaker doctrine, the guiding spirit or divine presence in each person.
- The representation of light in art.
- To set on fire; ignite or kindle.
- To cause to give out light; make luminous: lit a lamp.
- To provide, cover, or fill with light; illuminate: fireworks lighting the sky.
- To signal, direct, or guide with or as if with illumination.
- To enliven or animate: A smile lit her face.
- To start to burn; be ignited or kindled: Green wood does not light easily.
- To emit light; be lighted: Wait until the indicator lights up.
- a. Having a greater rather than lesser degree of lightness.b. Of or being an additive primary color.
- Characterized by or filled with light; bright: a room that is light when the shutters are open.
- Not dark in color; fair: light hair and skin.
- Served with milk or cream. Used of coffee.
Origin: Middle English, from Old English lēoht, līht; see leuk- in Indo-European roots.Usage Note: Lighted and lit are equally acceptable as past tense and past participle of light. Both forms are also well established as adjectives: a lighted (or lit) candle.
adjective light·er, light·est
- a. Of relatively little weight; not heavy: a light load.b. Of relatively little weight for its size or bulk: Balsa is a light wood.c. Of less than the correct, standard, or legal weight: a light pound.
- Exerting little force or impact; gentle: a light pat.
- Indistinct; faint: light print that I could barely make out.
- a. Of little quantity; scanty: light snow.b. Consuming or using relatively moderate amounts; abstemious: a light eater; a light smoker.c. Not harsh or severe: gave the offender a light sentence.
- Demanding little exertion or effort; not burdensome: light household tasks.
- Having little importance; insignificant: light, idle chatter.
- Intended primarily as entertainment; not serious or profound: a light comedy.
- Free from worries or troubles; blithe: a light heart.
- Characterized by frivolity; silly or trivial.
- Liable to change; fickle.
- Mildly dizzy or faint: felt light in the head.
- Lacking in ethical discrimination.
- Moving easily and quickly; nimble: The dancer was light and graceful.
- Designed for ease and quickness of movement; having a relatively slim structure and little weight: light aircraft.
- Designed to carry relatively little weight: a light truck.
- Carrying little equipment or armament: light cavalry; light tanks.
- Requiring relatively little equipment and using relatively simple processes to produce consumer goods: light industry.
- Easily awakened or disturbed: a light sleeper.
- a. Easily digested: a light supper.b. Having a spongy or flaky texture; well-leavened: light pastries.
- Having a loose, porous consistency: light soil.
- 21. Containing a relatively small amount of a potentially harmful ingredient, such as alcohol, fat, or sodium: light beer; light mayonnaise.
- 22. Linguistics a. Of, relating to, or being a syllable ending in a short vowel or a short vowel plus a consonant.b. Of, relating to, or being a vowel or syllable pronounced with little or no stress.
- In a light manner; lightly.
- With little weight and few burdens: traveling light.
- To get down, as from a vehicle or horse; dismount.
- To descend to the ground after flight; land.
- To come upon one unexpectedly: Misfortune lighted upon him.
- To come upon by chance or accident. Used with on or upon: lit on the perfect solution to the problem.
Origin: Middle English, from Old English lēoht, līht; see legwh- in Indo-European roots.
light - Ologies & -Isms Definition
light - Computer Definition
Electromagnetic energy with a waveform having a frequency above the upper limit of the radio range of 300 GHz and equal or less than the lower limit of the X-ray range of 30 PHz. At the low end of the range is infrared (IR) light, which operates at 30
Used by arrangement with John Wiley & Sons, Inc.
Computer Desktop Encyclopedia
THIS DEFINITION IS FOR PERSONAL USE ONLY
All other reproduction is strictly prohibited without permission from the publisher.
© 1981-2014 The Computer Language Company Inc. All rights reserved.
light - Cultural Definition
light - Medical Definition
- Electromagnetic radiation that has a wavelength in the range from about 4,000 (violet) to about 7,700 (red) angstroms and may be perceived by the normal unaided human eye.
- Electromagnetic radiation of any wavelength.
light - Phrases/Idioms
according to one's lights
in the light of
- to make or become light
- to make or become bright, cheerful, etc.
- Informal to begin smoking (a cigar, etc.)
see the light (of day)
- to come into existence
- to come to public view
- â to understand
stand in one's own light
strike a light
light in the head
- dizzy; giddy
- simple; foolish
light intoâ Informal
- to attack
- to scold; berate
make light of
Used by arrangement with John Wiley & Sons, Inc.
in (the) light of
light a fire under
light at the end of the tunnel
go light on
light - Science Definition
- Electromagnetic radiation that can be perceived by the human eye. It is made up of electromagnetic waves with wavelengths between 4 × 10-7 and 7 × 10-7 meters. Light, and all other electromagnetic radiation, travels at a speed of about 299,728 km (185,831 mi) per second in a vacuum. See also photon.
- Electromagnetic energy of a wavelength just outside the range the human eye can detect, such as infrared light and ultraviolet light. See Note at electromagnetic radiation.
Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.