The word dosimeters 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™ Play In The Letters dosimeters
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Seven Letter Word Alert: (54 words)
demerit, demises, demists, demotes, deserts, desires, dessert, diester, dieters, dimeter, dossier, editors, emoters, erotise, isomere, isomers, meioses, merited, messier, meteors, metrise, misdoer, misdoes, missort, misters, mitered, mitoses, moister, mortise, mossier, reedits, reemits, remotes, resides, restems, retimed, retimes, roisted, rosiest, smiters, soirees, somites, sortied, sorties, stereos, steroid, stomies, storied, stories, stormed, strides, tierods, tressed, tridems