Eudiometer

2 definitions found

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

  Eudiometer \Eu`di*om"e*ter\, n. [Gr. ? fair, clear weather, fr.
     ? fine, clear ( said of the air or weather) + -meter: cf. F.
     ediom[`e]tre.] (Chem.)
     An instrument for the volumetric measurement of gases; -- so
     named because frequently used to determine the purity of the
     air.


     [1913 Webster]
  
     Note: It usually consists of a finely graduated and
           calibrated glass tube, open at one end, the bottom; and
           having near the top a pair of platinum wires fused in,
           to allow the passage of an electric spark, as the
           process involves the explosion and combustion of one of
           the ingredients to be determined. The operation is
           conducted in a trough of mercury, or sometimes over
           water. Cf. {Burette}. Ure's eudiometer has the tube
           bent in the form of the letter. U. Eudiometric

From WordNet (r) 2.0 [wn]:

  eudiometer
       n : measuring instrument consisting of a graduated glass tube
           for measuring volume changes in chemical reactions
           between gases