rotameter Hear it!

rotameter definition

ro·tam·eter (rō tam′ət ər, rōt′ə mēt′ər)

noun

an instrument for measuring the rate of flow of a fluid by means of a movable float inserted in a vertical tube

Etymology: rota + -meter

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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