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 ]
a. Of or pertaining to a meteoroid or to meteoroids. [ 1913 Webster ]