asteroid

¹as·ter·oid

noun \ˈas-tə-ˌrȯid\

Definition of ASTEROID

1

: any of the small rocky celestial bodies found especially between the orbits of Mars and Jupiter

2

: starfish

— as·ter·oi·dal \ˌas-tə-ˈrȯi-d^əl\ adjective

Examples of ASTEROID

1. Most asteroids are found between Mars and Jupiter.

Origin of ASTEROID

Greek asteroeidēs starlike, from aster-, astēr

First Known Use: 1802

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

Rhymes with ASTEROID

adenoid, alkaloid, amoeboid, aneroid, anthropoid, arachnoid, Australoid, carcinoid, Caucasoid, celluloid, crystalloid, echinoid, ellipsoid, embryoid, eunuchoid, flavonoid, helicoid, hemorrhoid, hominoid, humanoid, hysteroid, metalloid, Mongoloid, myeloid, nautiloid, nucleoid, null and void, obovoid, opioid, osteoid, overjoyed, paranoid, planetoid, Polaroid, retinoid, rheumatoid, solenoid, Stalinoid, trapezoid, unalloyed, unemployed