cras·su·la·ce·ae \ˌ ̷ ̷ ̷ ̷ˈlāsēˌē\noun plural Usage: capitalized Etymology: New Latin, from Crassula, type genus + -aceae : a family of mostly fleshy herbs and subshrubs (order Rosales) having a scalelike gland at the base of each of the three or more connate pistils — compare sedum, stonecrop • cras·su·la·ceous\| ̷ ̷ ̷ ̷|lāshəs\adjective