The word carboxylated 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: 29
Highest Scoring Words With Friends™ Play In The Letters carboxylated
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Seven Letter Word Alert: (47 words)
ablated, ablator, aborted, abrayed, abreact, acatery, acolyte, acrobat, actable, acylate, already, arylate, barcode, bloated, bloater, boardly, boraxed, bracted, broadly, brocade, cabaret, caldera, carboxy, carload, caroled, coaltar, cordate, cotylae, cotylar, crayola, datable, daycare, delator, dextral, exactly, exactor, labored, laxator, leotard, lobated, located, lyrated, oracled, oxalate, taxable, taxably, treacly