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


Methylene Blue Solution use in staining variety of bacteria?

... influenzae, Neisseria, etc.) and leukocytes. This reagent produces dark blue nuclei with lighter blue cytoplasm. Nuclei: Dark Blue Cytoplasm: Light Blue Corynebacterium Diphtheria: Blue Granules Escherichia Coli: Blue Rods Streptococcus Pyogenes: Blue Cocci For more Details call us : 435-755-9848 ...

See entire post
by scytek
Sun Feb 22, 2015 9:22 am
 
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 267

Basic Knowledge about DNA Extraction

... the presence of DNA can be confirmed by electrophoresing on an agarose gel or another fluorescent dye that reacts with the DNA, and also by UV light. Lab instruments used in DNA Extraction Bead beater is often used for DNA extraction, because it can break apart cells in the early steps of extraction ...

See entire post
by 2444256703
Thu Jan 22, 2015 8:56 am
 
Forum: Genetics
Topic: Basic Knowledge about DNA Extraction
Replies: 0
Views: 748

China injects uncertainty into world of genetically modified

... modified seeds representing hundreds of millions of dollars in research and the promise of billions in sales. U.S. regulators have given the green light for Dow’s Enlist corn and soybeans, while final approval is expected shortly for Monsanto’s new Xtend cotton and soybean systems. There is, however, ...

See entire post
by Sheppie
Mon Jan 19, 2015 11:59 am
 
Forum: Botany Discussion
Topic: China injects uncertainty into world of genetically modified
Replies: 0
Views: 479

Re: immunoglobulins

... spinal fluid, lymph nodes, and spleen. Each immunoglobulin molecule consists of four polypeptide chains: two heavy chains (H chains) and two light chains (L chains). There are five antigenically different kinds of H chains, and this difference is the basis for the classification of immunoglobulins. ...

See entire post
by RZachary1
Wed Jan 14, 2015 5:49 am
 
Forum: Cell Biology
Topic: immunoglobulins
Replies: 2
Views: 2181

Biomerieux API anaerobe testing kit

... board.I am currently working with anaerobes and have been using an anaerobic biomerieux API test kit to identity some isolates. It has come to light that I do not possess the necessary passwords etc to access their database to identity the isolates. If anybody has a code I would greatly appreciate ...

See entire post
by ithyphallic
Thu Dec 04, 2014 10:08 pm
 
Forum: Microbiology
Topic: Biomerieux API anaerobe testing kit
Replies: 0
Views: 486
View all matching forum results

This page was last modified 10:46, 22 January 2009. This page has been accessed 27,678 times. 
What links here | Related changes | Permanent link