sidereal Hear it!

sidereal definition

si·dereal (sī dir′ē əl)

adjective

  1. of or pertaining to the stars
  2. expressed in reference to the stars

Etymology: < L sidereus < sidus (gen. sideris), a star < IE base *sweid-, to gleam > Lith svidù, to gleam

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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