mycoderma

noun3

1. •
   (no longer used) One of the forms in which microbes group themselves; a (microscopic or macroscopic) layer of motionless but living microbes united on the surface of the fluid in which they are developed, differing from the zoogloea stage by not having the intermediate mucous substance.
2. •
   (no longer used) A single microbe of (former) genus Mycoderma, as a denizen within a biofilm; a microscopic colony of such microbes, among many such colonies in a biofilm.
3. •
   (no longer used) Mucous membrane (mucosa).