any of a genus (Cereus
) of cactus, including a number of night-blooming varieties
of other genera, native to the SW U
.S. and Mexico
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'cereus'ModL < L, wax taper < cera, wax: so named from the shape of certain varieties