Any of the many small, solid bodies traveling through outer space, which are seen as meteors when they enter the earth's atmosphere.
A solid body, moving in space, that is smaller than an asteroid and at least as large as a speck of dust.
A small, rocky or metallic body revolving in interplanetary space around the Sun. A meteoroid is significantly smaller than an asteroid, ranging from small grains or particles to the size of large boulders. The clustered meteoroids associated with regular annual meteor showers are believed to be very small particles of cometary debris. Meteoroids that survive their passage through the Earth's atmosphere and land as meteorites are somewhat larger, solitary bodies and are encountered in no predictable pattern.
Origin of meteoroid
- meteor +"Ž -oid