The word interoceptor 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: 19
Highest Scoring Words With Friends™ Play In The Letters interoceptor
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Seven Letter Word Alert: (46 words)
cittern, contort, cornett, cornier, coroner, coronet, coterie, critter, crooner, enteric, enticer, erector, inepter, inerter, nepotic, percent, pettier, piercer, pioneer, pointer, porcine, porotic, portent, portico, portion, precent, prenote, printer, proctor, prootic, protect, protein, receipt, reciter, reinter, repiner, repoint, reprice, reprint, tentier, terpine, tiptoer, tornote, torrent, treetop, trooper