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[PRON. 'MEEM'] A CONTAGIOUS INFORMATION PATTERN THAT REPLICATES BY PARASITICALLY/SYMBIOTICALLY INFECTING HUMAN MINDS AND ALTERING THEIR BEHAVIOR, CAUSING THEM TO PROPAGATE THE PATTERN. [TERM COINED BY DAWKINS, BY ANALOGY WITH 'GENE'.] INDIVIDUAL SLOGANS, CATCH-PHRASES, MELODIES, ICONS, INVENTIONS, AND FASHIONS ARE TYPICAL MEMES. AN IDEA OR INFORMATION PATTERN IS NOT A MEME UNTIL IT CAUSES SOMEONE TO REPLICATE IT, TO REPEAT IT TO SOMEONE ELSE. ALL TRANSMITTED KNOWLEDGE IS MEMETIC.