asteroid

• POS: Adjective, Noun
• HYPHEN: as=ter=oid

CIDE DICTIONARY

asteroid, n. [Gr. starlike, starry; 'asth`r star + e'i^dos form: cf. F. astéroïde. 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]

OXFORD DICTIONARY

asteroid, n.
1 any of the minor planets revolving round the sun, mainly between the orbits of Mars and Jupiter.
2 Zool. a starfish.

Derivative

asteroidal adj.

Etymology

Gk asteroeides (as ASTER, -OID)

THESAURUS

asteroid

Earth, Jupiter, Mars, Mercury, Neptune, Pluto, Saturn, Uranus, Venus, asteroids, aurora particles, blackout, cosmic particles, cosmic ray bombardment, inferior planet, intergalactic matter, major planet, meteor dust impacts, meteors, minor planet, planet, planetoid, radiation, secondary planet, solar system, space bullets, superior planet, terrestrial planet, the bends, wanderer, weightlessness