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Halley

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Hal⋅ley

[hal-ee]
–noun
Edmund or Edmond, 1656–1742, English astronomer.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Hal·ley   (hāl'ē)   
English astronomer who applied Newton's laws of motion to predict correctly the period of a comet (1705).
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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