Definify.com
Webster 1913 Edition
Asteroid
As′ter-oid
,Noun.
A starlike body; esp. one of the numerous small planets whose orbits lie between those of Mars and Jupiter; – called also
planetoids
and minor planets
. Webster 1828 Edition
Asteroid
AS'TEROID
,Noun.
A name given by Herschel to the newly discovered planets between the orbits of Mars and Jupiter.