Dictionary
Thesaurus
Reference
Translate
Web
Related Searches
on Ask.com
Synonyms
Nearby Entries
brightness - 5 dictionary results

bright⋅ness

  [brahyt-nis]
Use brightness in a Sentence
–noun
1. the quality of being bright.
2. Optics. the luminance of a body, apart from its hue or saturation, that an observer uses to determine the comparative luminance of another body. Pure white has the maximum brightness, and pure black the minimum brightness.
Origin:
bef. 950; ME brihtnes, OE beorhtnes. See bright, -ness
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To brightness
bright·ness   (brīt'nĭs)   
n.  
  1. The state or quality of being bright.
  2. The effect or sensation by means of which an observer is able to distinguish differences in luminance.
  3. The dimension of a color that represents its similarity to one of a series of achromatic colors ranging from very dim (dark) to very bright (dazzling).
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Brightness

Bright"ness\, n. [AS. beorhines. See Bright.]

1. The quality or state of being bright; splendor; luster; brilliancy; clearness.

A sudden brightness in his face appear. --Crabbe.

2. Acuteness (of the faculties); sharpness 9wit.

The brightness of his parts . . . distinguished him. --Prior.

Syn: Splendor; luster; radiance; resplendence; brilliancy; effulgence; glory; clearness.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
Cite This Source

Main Entry: bright·ness
Pronunciation: 'brIt-n&s
Function: noun
: the one of the three psychological dimensions of color perception by whichvisual stimuli are ordered continuously from light to dark and which is correlated with light intensity —compare HUE, SATURATION 4a
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source

brightness graphics
(Or "tone", "luminance", "value", "luminosity", "lightness") The coordinate in the HSB colour model that determines the total amount of light in the colour. Zero brightness is black and 100% is white, intermediate values are "light" or "dark" colours.
The other coordinates are hue and saturation.
(1999-07-05)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
Cite This Source
Search another word or see brightness on Thesaurus | Reference