Jamming

4 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Jam \Jam\, v. t. [imp. & p. p. {Jammed} (j[a^]md); p. pr. & vb.
     n. {Jamming}.] [Either fr. jamb, as if squeezed between
     jambs, or more likely from the same source as champ See
     {Champ}.]
     [1913 Webster]
     1. To press into a close or tight position; to crowd; to


        squeeze; to wedge in; to cram; as, rock fans jammed the
        theater for the concert.
        [1913 Webster]
  
              The ship . . . jammed in between two rocks. --De
                                                    Foe.
        [1913 Webster]
  
     2. To crush or bruise; as, to jam a finger in the crack of a
        door. [Colloq.]
        [1913 Webster]
  
     3. (Naut.) To bring (a vessel) so close to the wind that half
        her upper sails are laid aback. --W. C. Russell.
        [1913 Webster]
  
     4. To block or obstruct by packing too much (people or
        objects) into; as, shoppers jammed the aisles during the
        fire sale.
        [PJC]
  
     5. (Radio) To interfere with (a radio signal) by sending
        other signals of the same or nearby frequency; as, the
        Soviets jammed Radio Free Europe broadcasts for years
        during the cold war.
        [PJC]
  
     6. To cause to become nonfunctional by putting something in
        that blocks the movement of a part or parts; as, he jammed
        the drawer by putting in too many loose papers; he jammed
        the lock by trying to pick it.
        [PJC]

From WordNet (r) 2.0 [wn]:

  jamming
       See {jam}

From WordNet (r) 2.0 [wn]:

  jam
       n 1: preserve of crushed fruit
       2: informal terms for a difficult situation; "he got into a
          terrible fix"; "he made a muddle of his marriage" [syn: {fix},
           {hole}, {mess}, {muddle}, {pickle}, {kettle of fish}]
       3: a dense crowd of people [syn: {crush}, {press}]
       4: deliberate radiation or reflection of electromagnetic energy
          for the purpose of disrupting enemy use of electronic
          devices or systems [syn: {jamming}, {electronic jamming}]
       v 1: press tightly together or cram; "The crowd packed the
            auditorium" [syn: {throng}, {mob}, {pack}, {pile}]
       2: push down forcibly; "The driver jammed the brake pedal to
          the floor"
       3: crush or bruise; "jam a toe" [syn: {crush}]
       4: interfere with or prevent the reception of signals; "Jam the
          Voice of America"; "block the signals emitted by this
          station" [syn: {block}]
       5: get stuck and immobilized; "the mechanism jammed"
       6: crowd or pack to capacity; "the theater was jampacked" [syn:
           {jampack}, {ram}, {chock up}, {cram}, {wad}]
       7: block passage through; "obstruct the path" [syn: {obstruct},
           {obturate}, {impede}, {occlude}, {block}, {close up}]
          [ant: {free}]
       [also: {jamming}, {jammed}]

From WordNet (r) 2.0 [wn]:

  jamming
       n : deliberate radiation or reflection of electromagnetic energy
           for the purpose of disrupting enemy use of electronic
           devices or systems [syn: {electronic jamming}, {jam}]