The Collaborative International Dictionary of English v.0.48:

Analyse \An"a*lyse\, v., Analyser \An"a*ly`ser\, n., etc.
   Same as Analyze, Analyzer, etc.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

analyser \analyser\ n.
   an instrument that performs analyses.

   Syn: analyzer
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

analyser
    n 1: an instrument that performs analyses [syn: analyzer,
         analyser]