Halley's comet: Meaning and Definition of

Hal'ley's com'et

Pronunciation: (hal'ēz or, sometimes, hā'lēz), [key]
  1. a comet with a period averaging 76 years. In this century it was visible to terrestrial observers just before and after reaching perihelion in 1910 and again in 1986.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
Halley halliard
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