The word meteoroids is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 14
Highest Scoring Words With Friends™ Plays In The Letters meteoroids
:
Seven Letter Word Alert: (35 words)
demerit, demotes, diester, dieters, dimeter, disroot, editors, emoters, erotise, isomere, merited, meteors, metrise, misdoer, mitered, moister, moodier, mortise, motored, osteoid, reedits, reemits, remotes, retimed, retimes, roisted, roosted, sootier, sortied, steroid, storied, stormed, tierods, toroids, tridems