Crab nebula Hear it!

Crab nebula definition

Crab nebula

a crab-shaped, rapidly expanding cloud of gas in the constellation Taurus, containing a neutron-star pulsar: believed to be the remnants of the supernova of 1054

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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