equatorial Hear it!

equatorial definition

equa·to·rial (ē′kwə tôr′ē əl, ek′wə-)

adjective

  1. of or near the earth's equator
  2. of any equator
  3. like or characteristic of conditions near the earth's equator equatorial heat
  4. designating or of a telescope mounted in such a way as to have two axes of motion, one (called polar axis) parallel to the earth's axis, the other (called declination axis) perpendicular to it: by rotation about the polar axis it can follow the apparent motion of a celestial body

noun

an equatorial telescope

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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