The word angiocardiogram 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: 27
Highest Scoring Words With Friends™ Play In The Letters angiocardiogram
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Seven Letter Word Alert: (45 words)
adoring, airraid, anagram, angioid, angioma, arraign, carding, cariama, carrion, comonad, conidia, cording, corndog, crinoid, diagram, digicam, diorama, dooming, dooring, doorman, dragoon, gadroon, girding, goading, gracing, grading, grandma, griming, imaging, marconi, marring, mirador, mooring, moronic, narcoma, nomadic, omicron, organic, origami, raiding, ridging, roadman, roaming, roaring, rooming