The word catecholamine 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: 26
Highest Scoring Words With Friends™ Plays In The Letters catecholamine
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Seven Letter Word Alert: (75 words)
acclaim, acetone, acholia, aconite, aeolian, ailment, alethic, alicant, aliment, aloetic, amentia, anaemic, animate, cacemia, cacolet, calcine, calcite, caliche, caltech, chalice, chancel, chaotic, chelate, cholate, choleic, choline, clement, climate, cloacae, coalite, coalman, coalmen, coatman, cocaine, cochlea, coeliac, cometic, comical, conceal, conceit, conical, echelon, elation, emanate, enolate, ethanol, ethical, hemline, hotline, laconic, lactone, laminae, lection, licence, lineate, machete, machine, maleate, manacle, manatee, manhole, matinee, meconic, menthol, methane, metical, miocene, nematic, netmail, oatmeal, oceanic, onetime, telecom, thalami, toenail