- Astronomy.
- a meteoroid that has entered the earth's atmosphere.
- a transient fiery streak in the sky produced by a meteoroid passing through the earth's atmosphere; a shooting star or bolide.
- any person or object that moves, progresses, becomes famous, etc., with spectacular speed.
- (formerly) any atmospheric phenomenon, as hail or a typhoon.
- Britain's first operational jet fighter, a twin-engine aircraft that entered service in 1944.
- meteorological.
- meteorology.
- a very small meteoroid that has entered the earth's atmosphere. Such objects have speeds approaching 70 kilometres per second
- the bright streak of light appearing in the sky due to the incandescence of such a body heated by friction at its surface
