Found 2 items, similar to planetoids.
English → English (WordNet) Definition: planetoid planetoid n : any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter) [syn: asteroid, minor planet]
English → English (gcide) Definition: planetoids Asteroid \As"ter*oid\, n. [Gr. ? starlike, starry; 'asth`r star + e'i^dos form: cf. F. ast['e]ro["i]de. See Aster.] 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. [1913 Webster]