Emily Dickinson Lexicon

RING'ENT, a. [L. ringor, to make wry faces, that is, to wring or twist.]

In botany, a ringent corol is one which is irregular and monopetalous, with the border divided into two parts, called the upper and lower lip, the upper arched, so that there is a space between the two like an open mouth. – Martyn. Smith.