vertical flute ver·ti·calf·lute uncommon noun 1. a woodwind with a vertical pipe and 8 finger holes and a whistle mouthpiece Synonymsfipple flutefipple piperecordervertical flute Related words Broader terms woodwind Narrower terms flageoletpennywhistle WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
