nostoc Syllabification: (nos·toc)Pronunciation: /ˈnästäk/Definition of nostoc noun Biology a microorganism composed of beaded filaments that aggregate to form a gelatinous mass, growing in water and damp places and able to fix nitrogen from the atmosphere. Genus Nostoc, division Cyanobacteria Origin:name invented by Paracelsusnostoc in other Oxford dictionaries Definition of nostoc in the British & World English dictionary
