Important in carbon and nitrogen fixation

• Large colonial bacterium common in tropical open-ocean waters

WordNet Word definitions in WordNet
n. large colonial bacterium common in tropical open-ocean waters; important in carbon and nitrogen fixation

Wikipedia Word definitions in Wikipedia
Trichodesmium , also called sea sawdust , is a genus of filamentous cyanobacteria . They are found in nutrient poor tropical and subtropical ocean waters (particularly around Australia and in the Red Sea , where they were first described by Captain Cook ...