any of several tropical American plants belonging to the genus Calceolaria, of the figwort family, having opposite or whorled leaves and slipper-shaped flowers.
Origin of slipperwort
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin for slipperwort
C19: so called because of the slipper-like shape of the flower
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