资料来源 : Webster's Revised Unabridged Dictionary (1913)

Meter \Me"ter\, n. [From {Mete} to measure.]
   1. One who, or that which, metes or measures. See
      {Coal-meter}.

   2. An instrument for measuring, and usually for recording
      automatically, the quantity measured.

   {Dry meter}, a gas meter having measuring chambers, with
      flexible walls, which expand and contract like bellows and
      measure the gas by filling and emptying.

   {W?t meter}, a gas meter in which the revolution of a
      chambered drum in water measures the gas passing through
      it.