Dictionary » L » Light

Light

Definition

noun

(1) (physics) The electromagnetic radiation of any wavelength, or sometimes only referring to a range of wavelength (about 400-700 nm) visible to an unaided human eye.

(2) A source of illumination, e.g. a lamp or an electric lighting fixture.

(3) The sensation of perceiving light.


verb

To illuminate or to provide illumination; to ignite; to give out or fill with light.


adjective

(1) Characterized by light (illumination).

(2) Not dark in color; fair.

(3) Low in content or amount, e.g. low in sugar or starch.

(4) Applying slight force or pressure.


Supplement

Certain organisms are capable of producing and emitting visible radiation. Examples of such organisms are fireflies, glow worms, Jack O'Lantern mushroom, ghost fungus, Anglerfish, Aequorea victoria (a jellyfish), dinoflagellates, etc.


Word origin: Old English lēoht. Cognate with Dutch licht, German Licht.

Synonyms:

See also: wavelength

Related terms:


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Help With

... I feel that it would cause the mice to be born with no pelvis because the trait is recessive, however i am not sure? Is there anyone to shed light on this for me? The 2nd question in this reading is involving active and in active genes Which regions in the Pitx1 gene complex (below) do you ...

See entire post
by scienceguy914
Mon Sep 08, 2014 1:44 am
 
Forum: General Discussion
Topic: Help With
Replies: 0
Views: 48

everybody undeveloped to the sunna harridan and baggage fact

... can over with of nothing but the be against itself. Maintain practicing this as multitudinous times as achievable kalendarze firmowe disembark of light of day

See entire post
by Frafdbaf
Fri Aug 01, 2014 1:30 pm
 
Forum: Microbiology
Topic: Detect influenza in saliva
Replies: 14
Views: 3957

Re: Vitamin D absorption for different skin types

This seems to be an area that is just beginning to draw research interest. Darker skin evolved in high light-exposure populations to protect deeper skin layers from UV damage, but tones lightened in pops with lower exposure, to allow enough UV to reach the D-generating skin ...

See entire post
by Darby
Tue Jul 15, 2014 7:39 pm
 
Forum: Human Biology
Topic: Vitamin D absorption for different skin types
Replies: 1
Views: 572

biology urgent need help?

... confounding, if the insects sense and respond to - A - Humidity B - Geomagnetism C - Different stimuli at different ages D - Polarization of light interacting with the materials E - Frequencies of light F - Temperature Some are more likely, but all are at least possible.

See entire post
by Darby
Tue May 20, 2014 6:42 pm
 
Forum: General Discussion
Topic: biology urgent need help?
Replies: 3
Views: 1638

Re: biology urgent need help?

... out the time of day or year. The question is, one would expect insects to have some sort of biological clock going, by which they like to be in light or darkness for N hours. Their response should vary considerably according to the length of their exposure to artificial light.

See entire post
by animartco
Sun May 18, 2014 11:57 am
 
Forum: General Discussion
Topic: biology urgent need help?
Replies: 3
Views: 1638
View all matching forum results

This page was last modified 10:46, 22 January 2009. This page has been accessed 24,862 times. 
What links here | Related changes | Permanent link