Sensitizer

2 definitions found

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

  Sensitizer \Sen"si*ti`zer\, n. (Photog.)
     An agent that sensitizes.
     [1913 Webster]
  
           The sensitizer should be poured on the middle of the
           sheet.                                   --Wilis &


                                                    Clements (The
                                                    Platinotype).
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  sensitizer
       n : (chemistry) a substance other than a catalyst that
           facilitates the start of a catalytic reaction [syn: {sensitiser}]