flyby

American  

[flahy-bahy] / ˈflaɪˌbaɪ /

Or fly-by

noun

plural

flybys

1. the flight of a spacecraft close enough to a celestial object, as a planet, to gather scientific data.

2. Aeronautics.

   1. Also called flypast.  a low-altitude flight of an aircraft for the benefit of ground observers.

   2. flyover.

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flyby British  

/ ˈflaɪˌbaɪ /

noun

1. a flight past a particular position or target, esp the close approach of a spacecraft to a planet or satellite for investigation of conditions

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Etymology

Origin of flyby

1950–55, noun use of verb phrase fly by