RhymeZone: halley definitions

Definitions of Halley:

noun: English astronomer who used Newton's laws of motion to predict the period of a comet (1656-1742)
name: A female given name (common: 1 in 100000 females; popularity rank in the U.S.: #3646)
name: A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #7330)