The word galvanometer 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: 23
Highest Scoring Words With Friends™ Play In The Letters galvanometer
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Seven Letter Word Alert: (58 words)
aerogel, agamete, almoner, areolae, avenger, average, elegant, emanate, engrave, enlarge, enolate, enteral, eternal, garment, gateman, gatemen, general, gentler, germane, gleaner, gloater, granola, grantee, greaten, magenta, magnate, magneto, maleate, manager, manatee, mangler, margate, megaton, melange, mongrel, montage, nametag, oatmeal, overage, overate, overeat, overman, reagent, removal, tanager, tangelo, tangram, telogen, telomer, tonearm, vagrant, vantage, vegetal, velamen, veneral, ventral, veteran, voltage