The word cytogenetical 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: 25
Highest Scoring Words With Friends™ Play In The Letters cytogenetical
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Seven Letter Word Alert: (74 words)
accinge, acetone, acolyte, aconite, acyloin, aloetic, angelic, cacolet, calcine, calcite, catelog, catogen, cattily, catting, cloying, coaling, coalite, coating, cocaine, coeliac, cogency, cognate, coinage, conceal, conceit, congeal, conical, contact, cottage, cotylae, cyanite, cyclane, cyclene, cycling, cyclone, cynical, elating, elation, elegaic, elegant, elegiac, enocyte, enolate, entitle, galette, gelatin, genetic, genital, gentile, glycine, inocyte, laconic, lactone, latency, lattice, lection, letting, licence, lineage, lineate, nattily, neglect, neocyte, nictate, oceanic, tacitly, tactile, tagline, tangelo, telogen, tentage, tetanic, toenail, yealing