(sko″to-kro´mo-jәn) a microorganism whose pigmentation develops in the dark as well as in the light; specifically, a member of a group of the anonymous mycobacteria. adj., scotochromogen´ic., adj.
An organism (eg. Mycobacterium) forming pigment both in the presence and absence of light.
scotochromogen, scotochromogenic 1. A strain of mycobacteria that can form pigment with or without light. 2. Any microorganism that produces pigment when grown without light as well as with light.