a family (Nyctaginaceae, order Caryophyllales) of dicotyledonous plants, including
any of a genus (Mirabilis
) of chiefly
tropical American plants of the four-o'clock family, bearing
petal-less flowers and, often, brightly colored
leaves; esp., a garden
plant (M. jalapa
) with long-tubed blossoms
open at about 4:00 p.m.
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.