fractostratus noun plural -ti (-taɪ) low ragged layered cloud often appearing below nimbostratus clouds during rain Liberaldictionary.com
Word Origin for fractostratus C19: from Latin fractus broken + stratus 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