manometer

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ma·nom·e·ter / məˈnämətər/ • n. an instrument for measuring the pressure acting on a column of fluid, esp. one with a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms.DERIVATIVES: man·o·met·ric / ˌmanəˈmetrik/ adj.man·o·met·ri·cal·ly / ˌmanəˈmetrik(ə)lē/ adv.ma·nom·e·try / -trē/ n.

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