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Medical Definition of Cord factor
1. Glycolipid (trehalose 6, 6' dimycolate) found in the cell walls of Mycobacteria (causing them to grow in serpentine cords) and important in virulence, being toxic and inducing granulomatous reactions identical to those induced by the whole organism. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)