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Any of various freshwater nitrogen-fixing cyanobacteria of the genus Nostoc that form spherical colonies of filaments embedded in a gelatinous substance.
[New Latin, coined by Paracelsus.]
(Microbiology) any cyanobacterium of the genus Nostoc, occurring in moist places as rounded colonies consisting of coiled filaments in a gelatinous substance
[C17: New Latin, coined by Paracelsus]
any blue-green algae of the genus Nostoc, characteristically forming jellylike colonies in moist places.
[1640–50; < New Latin, coined by Paracelsus]
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|Noun||1.||nostoc - found in moist places as rounded jellylike colonies|
blue-green algae, cyanobacteria - predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton
genus Nostoc - type genus of the family Nostocaceae: freshwater blue-green algae