Site Map | FAQ

• Editor's Favorites
  • Answerplease: A new Q & A site
  • Black History Month
  • Leap Year
  • President's Day
  • Campaign 2012
  • Country Profiles
  • Most Populous Cities of the World
  • Holidays in America
  • 50 States
  • Conversion Calculator
  • Color Psychology
  • Top 50 U.S. Cities
  • Infoplease's Facebook page
  • Follow Infoplease on Twitter

 

Dictionary

col'or in"dex

Astron.
1. the difference between the apparent photographic magnitude and the apparent visual magnitude of a star.
2. the difference between the magnitudes of a star in any two spectral regions.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

colorimeter

coloring

• • Cite
  • Print
  • Email
  • Bookmark
    • Add bookmark
    • Add to del.icio.us
    • Digg It!
    • Add to Reddit

Related Content Daily Word Quiz: bete noir Analogy of the Day: Today's Analogy Spelling Bee: Today's Spelling Bee Kids' Word Quiz: dispel Crossword: Crossword Puzzle Guide Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language

Find definitions for: