from The American Heritage® Dictionary of the English Language, 4th Edition
- Halley, Edmund or Edmond 1656-1742. English astronomer who applied Newton's laws of motion to predict correctly the period of a comet (1705).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. English astronomer who used Newton's laws of motion to predict the period of a comet (1656-1742)
Sorry, no etymologies found.