The word myrmecophytes 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: 31
Highest Scoring Words With Friends™ Play In The Letters myrmecophytes
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Seven Letter Word Alert: (53 words)
cephems, chomper, chromes, coheres, compere, compete, cotypes, cyphers, echoers, ecotype, ectypes, emoters, eophyte, etchers, eyeshot, eyespot, heptose, heteros, meteors, mothers, myocyte, myomere, mystery, pectose, perches, porches, pothers, pyocyst, pyocyte, rechose, rehomes, remotes, rescope, respect, retches, retypes, scepter, sceptre, schemer, scyther, smother, specter, spectre, stepmom, stomper, strophe, symptom, tempers, tempore, theorem, thermos, torches, trochee