Mon`o*pet"al*ous (?), a. [Mono-
+ petal: cf. F. monopétale.] (Bot.)Having only one petal, or the corolla in one piece, or composed
of petals cohering so as to form a tube or bowl;
gamopetalous.
☞ The most recent authors restrict this form to flowers
having a solitary petal, as in species of Amorpha, and use
gamopetalous for a corolla of several petals combined into one
piece. See Illust. of Gamopetalous.