The word dicotyledons 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: 21
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (66 words)
clients, coddles, coedits, coldest, condole, condyle, console, coolest, cooties, cotyles, coyotes, cystine, cystoid, cytosol, delicts, delints, deltoid, density, dentils, desnood, destiny, dicotyl, dildoes, distend, distyle, doodles, indoles, inocyte, instyle, isodont, lection, lionets, loonies, lotions, lyddite, noodled, noodles, notedly, noticed, notices, ocelots, octynes, oleosin, oocytes, oolites, osteoid, scolded, scooted, section, snidely, snooded, snooted, society, sootily, stencil, stonily, stooled, stoolie, stylion, styloid, synodic, tiddley, toddies, toddles, toonies, tycoons