Search Result for "meteoroid": 
Wordnet 3.0

NOUN (1)

1. (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere;
[syn: meteoroid, meteor]


The Collaborative International Dictionary of English v.0.48:

Meteoroid \Me"te*or*oid\ (m[=e]"t[-e]*[~e]r*oid), n. [Meteor + -oid.] (Astron.) A small body moving through space, or revolving about the sun, which on entering the earth's atmosphere would be deflagrated and appear as a meteor. [1913 Webster] These bodies [small, solid bodies] before they come into the air, I call meteoroids. --H. A. Newton. [1913 Webster]
WordNet (r) 3.0 (2006):

meteoroid n 1: (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere [syn: meteoroid, meteor]