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Meaning of green sulfur bacteria

green' sul'fur bacte"ria

Pronunciation: [key]
  1. a group of green or brown bacteria of the families Chlorobiaceae and Chloroflexaceae that occur in aquatic sediments, sulfur springs, and hot springs and that utilize reduced sulfur compounds instead of oxygen.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.