Dictionary.com
definitions

crassulaceous

[kras-yoo-ley-shuh s]
adjective
  1. belonging to the Crassulaceae, the stonecrop family of plants.
Compare stonecrop family.

Origin of crassulaceous

1650–60; < New Latin Crassulace(ae) (equivalent to Crassul(a) genus name (Medieval Latin crassula; see crass, -ule) + -aceae -aceae) + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for crassulaceous

crassulaceous

adjective
  1. of, relating to, or belonging to the Crassulaceae, a family of herbaceous or shrubby flowering plants with fleshy succulent leaves, including the houseleeks and stonecrops

Word Origin for crassulaceous

C19: from New Latin Crassula name of genus, from Medieval Latin: stonecrop, from Latin crassus thick
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