Site Map | FAQ

• Editor's Favorites
  • Answerplease: A new Q & A site
  • Asian Pacific American Heritage Month
  • Gay Pride Month
  • Everest Almanac
  • Memorial Day
  • Conversion Calculator
  • Campaign 2012
  • Country Profiles
  • Most Populous Cities of the World
  • Holidays in America
  • 50 States
  • Color Psychology
  • Top 50 U.S. Cities
  • Infoplease's Facebook page
  • Follow Infoplease on Twitter

 

Dictionary

al'pha recep"tor

a site on a cell that, upon interaction with epinephrine or norepinephrine, controls vasoconstriction, intestinal relaxation, pupil dilation, and other physiological processes. Also,al'pha-re•cep"tor.Also called alpha-adrenergic receptor. Cf. beta receptor.

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

alpha ray

alpha rhythm

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

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

Find definitions for: