Site Map | FAQ

• Editor's Favorites
  • Answerplease: A new Q & A site
  • Black History Month
  • Valentine's Day
  • 2011 Year in Review
  • 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

prism

Pronunciation: (priz'um), [key]
—n.
1. Optics.a transparent solid body, often having triangular bases, used for dispersing light into a spectrum or for reflecting rays of light.
2. Geom.a solid having bases or ends that are parallel, congruent polygons and sides that are parallelograms.
3. Crystall.a form having faces parallel to the vertical axis and intersecting the horizontal axes.

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

prisiadka

prismatic

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

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

Find definitions for: