light
Although in physics light is well-understood as electromagnetic energy of a very specific wavelength (between 390 and 740 nanometers: a nanometer is 10–9 metre), the fact that this is just the energy that illuminates the world for us is evidently contingent upon the nature of our senses, and upon the adaptations they have made to the environment. Light can thus come to inherit the problems of secondary qualities (see primary/secondary qualities ), and just as the fact that trees are green can seem due to our design as much as to non-human nature, so the fact that it is light or dark may seem disturbingly anthropocentric or subjective. Descartes put the problem by asking ‘could nature not also have established some sign, which would make us have the sensation of light, even if the sign contained nothing in itself which is similar to this sensation?’ (Le Monde ). Light has been associated with the original primal creative principle in many religious and philosophical traditions, including Zoroastrianism and Neoplatonism.

Philosophy dictionary. . 2011.

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  • Light — (l[imac]t), n. [OE. light, liht, AS. le[ o]ht; akin to OS. lioht, D. & G. licht, OHG. lioht, Goth. liuha[thorn], Icel. lj[=o]s, L. lux light, lucere to shine, Gr. leyko s white, Skr. ruc to shine. [root]122. Cf. {Lucid}, {Lunar}, {Luminous},… …   The Collaborative International Dictionary of English

  • Light — Light, a. [Compar. {Lighter} (l[imac]t [ e]r); superl. {Lightest}.] [OE. light, liht, AS. l[=i]ht, le[ o]ht; akin to D. ligt, G. leicht, OHG. l[=i]hti, Icel. l[=e]ttr, Dan. let, Sw. l[ a]tt, Goth. leihts, and perh. to L. levis (cf. {Levity}), Gr …   The Collaborative International Dictionary of English

  • light — light1 [līt] n. [ME liht < OE lēoht, akin to Ger licht < IE base * leuk , to shine, bright > Gr leukos, white, L lux & lumen, light, lucere, to shine, luna, moon, Welsh llug, gleam] 1. a) the form of electromagnetic radiation that acts… …   English World dictionary

  • light — Ⅰ. light [1] ► NOUN 1) the natural agent that stimulates sight and makes things visible; electromagnetic radiation from about 390 to 740 nm in wavelength. 2) a source of illumination. 3) a device producing a flame or spark. 4) (lights) traffic… …   English terms dictionary

  • light — [adj1] illuminated ablaze, aglow, bright, brilliant, burnished, clear, cloudless, flashing, fluorescent, glossy, glowing, lambent, lucent, luminous, lustrous, phosphorescent, polished, radiant, refulgent, resplendent, rich, scintillant, shining,… …   New thesaurus

  • Light — Light, v. t. [imp. & p. p. {Lighted} (l[imac]t [e^]d) or {Lit} (l[i^]t); p. pr. & vb. n. {Lighting}.] [AS. l[=y]htan, l[=i]htan, to shine. [root]122. See {Light}, n.] 1. To set fire to; to cause to burn; to set burning; to ignite; to kindle; as,… …   The Collaborative International Dictionary of English

  • Light — Light, v. i. [imp. & p. p. {Lighted} (l[imac]t [e^]d) or {Lit} (l[i^]t); p. pr. & vb. n. {Lighting}.] [AS. l[=i]htan to alight orig., to relieve (a horse) of the rider s burden, to make less heavy, fr. l[=i]ht light. See {Light} not heavy, and cf …   The Collaborative International Dictionary of English

  • Light — (l[imac]t), a. [AS. le[ o]ht. See {Light}, n.] [Compar. {Lighter} (l[imac]t [ e]r); superl. {Lightest}.] 1. Having light; not dark or obscure; bright; clear; as, the apartment is light. [1913 Webster] 2. White or whitish; not intense or very… …   The Collaborative International Dictionary of English

  • Light — heißt der Ort Light (Arkansas), Ort in den Vereinigten Staaten Light ist der Familienname folgender Personen: John Light (* 1974), britischer Schauspieler Judith Light (* 1949), US amerikanische Schauspielerin William Light (1786–1839),… …   Deutsch Wikipedia

  • light — [ lajt ] adj. inv. • 1988; mot angl. « léger; à basses calories » ♦ Anglic. Qui est sucré avec des édulcorants de synthèse. Les boissons light. Qui contient peu de calories; moins de produits nocifs. ⇒ allégé, léger. Cigarettes extra light. light …   Encyclopédie Universelle

  • light# — light vb 1 Light, kindle, ignite, fire basically mean to set something burning or on fire. Light (see also ILLUMINATE), when it takes as its subject the agent or agency, usually implies such an end of the action as illumination {she lighted the… …   New Dictionary of Synonyms

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