The Collaborative International Dictionary of English v.0.48:

Examen \Ex*a"men\, n. [L., the tongue of a balance, examination;
   for exagmen, fr. exigere to weigh accurately, to treat: cf.
   F. examen. See Exact, a.]
   Examination; inquiry. [R.] "A critical examen of the two
   pieces." --Cowper.
   [1913 Webster]

WordNet (r) 3.0 (2006):

examen
    n 1: a detailed inspection of your conscience (as done daily by
         Jesuits) [syn: examen, examination]
    2: a critical study (as of a writer's work)