The word spectrometers 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: 22
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (92 words)
compere, compete, corpses, corsets, cotters, creeper, cresset, crosser, emerses, emoters, emperor, empress, erecter, erector, escorts, esteems, meeters, mercers, meteors, pectose, pesters, poetess, porters, posters, potters, premeet, presets, presort, presser, preterm, pretest, process, protect, protest, recross, rectors, reerect, remeets, remorse, remoter, remotes, reports, reposer, reposes, reposts, repress, rescope, rescore, resects, resorps, resorts, respect, respots, restems, resteps, resters, restore, retests, retorts, retrees, rompers, rosette, rosters, rotters, scepter, sceptre, scorers, secrete, secrets, sectors, septets, settees, setters, sorters, specter, spectre, spotter, steeper, steerer, stereos, stomper, streets, teemers, teeters, tempers, tempest, tempore, tempter, tersest, testers, treetop, tremors