WordNet
sulphur bacteria
n. any bacterium of the genus Thiobacillus [syn: thiobacteria, sulfur bacteria]
Usage examples of "sulphur bacteria".
Because a whole section of the pond was overshadowed by the forest, the bottom was choked with dead leaves covered with a purple scum due to sulphur bacteria, making its depths very dark and its vegetation restricted to algae and a few dumps of starwort.