Source : Webster's Revised Unabridged Dictionary (1913)

Constrict \Con*strict"\, v. t. [imp. & p. p. {Constricted}; p.
   pr. & vb. n. {Constricting}.] [L. constrictus, p. p. of
   constringere. See {Constrain}.]
   To draw together; to render narrower or smaller; to bind; to
   cramp; to contract or cause to shrink.

         Such things as constrict the fibers.     --Arbuthnot.

         Membranous organs inclosing a cavity which their
         contraction serves to constrict.         --Todd &
                                                  Bowman.

Source : WordNet®

constricting
     adj 1: hindering freedom of movement; "tight garments are
            uncomfortably binding" [syn: {binding}]
     2: (of circumstances) tending to constrict freedom [syn: {constrictive},
         {narrowing}]