Definition of flyby in English:

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Pronunciation: /ˈflībī/

noun (plural flybys)

A flight past a point, especially the close approach of a spacecraft to a planet or moon for observation.
Example sentences
  • When Europe's comet-chasing spacecraft Rosetta swings by Earth on 4 March 2005, it will perform the closest fly-by of our home planet ever conducted by ESA.
  • The two close fly-bys of Saturn's moon Enceladus by the NASA / ESA / ASI Cassini spacecraft have revealed that it has a significant atmosphere.
  • With each close fly-by of a planet, it receives an energy boost because of the planet's gravitational pull.

For editors and proofreaders

Syllabification: fly·by

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