Rheometer

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hydrometer \Hy*drom"e*ter\, n. [Hydro-, 1 + -meter: cf. F.
     hydrom[`e]tre.]
     1. (Physics) An instrument for determining the specific
        gravities of liquids, and thence the strength spirituous
        liquors, saline solutions, etc.
        [1913 Webster]


  
     Note: It is usually made of glass with a graduated stem, and
           indicates the specific gravity of a liquid by the depth
           to which it sinks in it, the zero of the scale marking
           the depth to which it sinks in pure water. Extra
           weights are sometimes used to adapt the scale to
           liquids of different densities.
           [1913 Webster]
  
     2. An instrument, variously constructed, used for measuring
        the velocity or discharge of water, as in rivers, from
        reservoirs, etc., and called by various specific names
        according to its construction or use, as {tachometer},
        {rheometer}, {hydrometer}, {pendulum}, etc.; a current
        gauge. Hydrometric

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Rheometer \Rhe*om"e*ter\, n. [Gr. "rei^n to flow + -meter.]
     [Written also {reometer}.]
     1. (Physics) An instrument for measuring currents, especially
        the force or intensity of electrical currents; a
        galvanometer.
        [1913 Webster]
  
     2. (Physiol.) An instrument for measuring the velocity of the
        blood current in the arteries.
        [1913 Webster]