Jamming

n. intentional electronic interference of electronic devices or systems

v. crowd, cram together; pack in; become crowded together; become stuck; cause to be stuck; disrupt, block, interfere (as in radio signals); play music in a free and improvisational manner

Jamming may mean:Techniques to limit the effectiveness of an opponent's communications and/or detection equipment.Radio jammingRadar jammingCell phone jammerIn physics, the term jamming is used for apparent changes of state; for example, a granular medium suddenly acting like a solid. E-mail jamming, used by electronic political activists or hackers to disable e-mail systemsJamming (fanzine), a late 1970s to early 1980s UK music fanzine edited by Tony Fletcher.Jamming (or jam session), an informal, semi-improvised performance by a group of rock or jazz musicians.Jamming (dance), cheered show-offs during social dancing.A set of climbing moves that involve wedging a body part into a crack when rock climbing.Culture jamming, the act of using existing mass media to comment on those very media themselves, using the original medium's communication method.A song by Bob Marley from the Album, Exodus (album).
See more at Wikipedia.org...

Noun
1. deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
(synonym) electronic jamming, jam
(hypernym) electronic countermeasures, ECM
(hyponym) barrage jamming
(derivation) jam, block

Noun
1. preserve of crushed fruit
(hypernym) conserve, preserve, conserves, preserves
(hyponym) strawberry jam, strawberry preserves
2. informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage"
(synonym) fix, hole, mess, muddle, pickle, kettle of fish
(hypernym) difficulty
(hyponym) dog's breakfast, dog's dinner
3. a dense crowd of people
(synonym) crush, press
(hypernym) crowd
(hyponym) traffic jam, snarl-up
(derivation) jampack, ram, chock up, cram, wad
4. deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
(synonym) jamming, electronic jamming
(hypernym) electronic countermeasures, ECM
(hyponym) barrage jamming
(derivation) block
Verb
1. press tightly together or cram; "The crowd packed the auditorium"
(synonym) throng, mob, pack, pile
(hypernym) crowd, crowd together
2. push down forcibly; "The driver jammed the brake pedal to the floor"
(hypernym) push, force
3. crush or bruise; "jam a toe"
(synonym) crush
(hypernym) bruise, contuse
4. interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station"
(synonym) block
(hypernym) interrupt, disrupt, break up, cut off
(hyponym) barrage jam
(derivation) jamming, electronic jamming
5. get stuck and immobilized; "the mechanism jammed"
(hypernym) malfunction, misfunction
6. crowd or pack to capacity; "the theater was jampacked"
(synonym) jampack, ram, chock up, cram, wad
(hypernym) stuff
(verb-group) cram
(derivation) crush, press
7. block passage through; "obstruct the path"
(synonym) obstruct, obturate, impede, occlude, block, close up
(hypernym) impede, hinder
(hyponym) blockade, block off

(p. pr. & vb. n.)
of Jam
  

John and Martin. An interpreted FORTH-like graphics language by John Warnock and Martin Newell, Xerox PARC, 1978. JaM was the forerunner of both Interpress and PostScript. It is mentioned in PostScript Language reference Manual, Adobe Systems, A-W 1985.

A condition on a network where two nodes transmitting simultaneously detect the collision and continue to transmit for a certain time (4 to 6 bytes on Ethernet) to ensure that the collision has been detected by all nodes involved.
(1994-12-12)