[ nos-tok ]
/ ˈnɒs tɒk /


any freshwater, blue-green alga of the genus Nostoc, often occurring in jellylike colonies in moist places.

Origin of nostoc

From New Latin, dating back to 1640–50, coined by Paracelsus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nostoc

British Dictionary definitions for nostoc


/ (ˈnɒstɒk) /


any cyanobacterium of the genus Nostoc, occurring in moist places as rounded colonies consisting of coiled filaments in a gelatinous substance

Word Origin for nostoc

C17: New Latin, coined by Paracelsus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012