- far-red light
- far-red light «FAHR REHD»,the reddish-purple part of the red band of the spectrum. Far-red light inhibits the growth of plants by counteracting the effect of red light on the enzyme phytochrome.
Useful english dictionary. 2012.
far-red light
Look at other dictionaries:
Far-red — light is light at the extreme red end of the visible spectrum, between red and infra red light. Usually regarded as the region between 700 and 800 nm wavelength, it is dimly visible to some eyes. It is reflected or transmitted by plants because… … Wikipedia
Light therapy — Intervention Bright light therapy is a common treatment for seasonal affective disorder and for circadian rhythm disorders. ICD 10 PCS … Wikipedia
far — 1. far from + noun. This is a common way of expressing denial or rejection of a proposition: • The American dream seems as far from reality as my Communist dream Guardian, 1986. Its function as metaphor is more strongly evident in the variant… … Modern English usage
Far infrared astronomy — is the branch of astronomy and astrophysics which deals with objects visible in far infrared radiation (extending from 30 µm towards submillimeter wavelengths around 450 µm).In the far infrared, stars are not especially bright, but we can see… … Wikipedia
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics … Universalium
Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution … Wikipedia
red — {{11}}red (1) O.E. read, from P.Gmc. *rauthaz (Cf. O.N. rauðr, Dan. rèd, O.Fris. rad, M.Du. root, Ger. rot, Goth. rauþs), from PIE root *reudh (Cf. L. ruber, also dialectal rufus light red, mostly of hair; Gk … Etymology dictionary
light — light1 [ laıt ] noun *** 1. ) uncount brightness from the sun or from a light, which allows you to see things: The room gets a lot of light in the afternoons. light shines: Light from the street lamps was shining through a gap in the curtains. a… … Usage of the words and phrases in modern English
Far-west — Ouest américain L Ouest américain, parfois appelé Far West (Extrême Ouest en anglais, pendant occidental du Far East, Extrême Orient pour les anglophones), est une région située à l ouest des États Unis. Sa définition a évolué avec le temps,… … Wikipédia en Français
