1In form Zoogloea: a genus of Gram-negative, aerobic, rod-shaped bacteria (family Pseudomonadaceae), typically occurring in masses or films surrounded by gelatinoid material, and often found in water containing sewage or other organic matter; (also zoogloea) a bacterium of this genus.
Valid publication of the genus name: H. Itzigsohn 1868, in Sitzungs-Berichte der Gesellschaft Naturforschender Freunde zu Berlin (19 Nov. 1867) 30/2.
2A mass or film of bacteria (sometimes with other microorganisms) surrounded by gelatinoid material.
Mid 19th century; earliest use found in Andrew Pritchard (1804–1882), microscopist. From scientific Latin Zoogloea, genus name from zoo- + ancient Greek γλοιός glutinous substance.