Source : Webster's Revised Unabridged Dictionary (1913)

Secern \Se*cern"\, v. t. [imp. & p. p. {Secerned}; p. pr. & vb.
   n. {Secerning}.] [L. secernere. See {Secrete}.]
   1. To separate; to distinguish.

            Averroes secerns a sense of titillation, and a sense
            of hunger and thirst.                 --Sir W.
                                                  Hamilton.

   2. (Physiol.) To secrete; as, mucus secerned in the nose.
      --Arbuthnot.

Source : WordNet®

secern
     v : mark as different; "We distinguish several kinds of maple"
         [syn: {distinguish}, {separate}, {differentiate}, {secernate},
          {severalize}, {severalise}, {tell}, {tell apart}]