The word gaussmeters 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: 17
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (40 words)
asserts, assumer, assumes, assures, austere, estrums, euaster, gametes, gassers, gearset, gesture, grasses, greases, guesser, guesses, gumtree, gussets, masseur, masters, matures, measure, message, musters, remates, reseats, restage, restems, resumes, reteams, russets, seamers, seaters, sesames, stagers, steamer, streams, teasers, tresses, trusses, ureases