Source : Webster's Revised Unabridged Dictionary (1913)

Suspensor \Sus*pen"sor\, n. [NL.]
   1. A suspensory.

   2. (Bot.) The cord which suspends the embryo; and which is
      attached to the radicle in the young state; the proembryo.

Source : WordNet®

suspensor
     n : a support for the genitals worn by men engaging in strenuous
         exercise [syn: {athletic supporter}, {supporter}, {jockstrap},
          {jock}]