- scotochromogen
- sco·to·chro·mo·gen (sko″to-kroґmo-jən) [scoto- + chromo- + -gen] a microorganism whose pigmentation develops in the dark as well as in the light; specifically, a member of Runyon Group II of the nontuberculous mycobacteria, but applicable also to many other organisms. See also nontuberculous mycobacteria, under mycobacterium.
Medical dictionary. 2011.