Transmittance

2 definitions found

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

  Transmittance \Trans*mit"tance\, n.
     Transmission.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  transmittance
       n : the fraction of radiant energy that passes through a
           substance [syn: {transmission}]