belonging or pertaining to the Simplicidentata, formerly regarded as a suborder or division of rodents having only one pair of upper incisor teeth.
Origin of simplicidentate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of, relating to, or belonging to the Simplicidentata, a former suborder including all the mammals now classified as rodents: used when lagomorphs were included in the order Rodentia
any animal of this type
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