The word contralateral 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™ Plays In The Letters contralateral
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Seven Letter Word Alert: (30 words)
aerator, areolar, cantata, caroler, central, clatter, clotter, coaltar, collate, corneal, cornett, creator, enactor, lactate, lacteal, lactone, lateral, narrate, ocellar, ornater, ratrace, rattler, reactor, reallot, realtor, retotal, retract, teacart, torrent, tractor