ringent
/ˈrɪn(d)ʒ(ə)nt/adjective
Botany. Of a corolla: bilabiate, with the lips widely separated; (in early use also) personate (now rare ). Also (of a plant): having a flower of this type ( rare ).
Origin
Mid 18th century; earliest use found in James Lee (1715–1795), nurseryman. From classical Latin ringent-, ringēns, present participle of ringī to open the mouth wide, show the teeth; in specific use in sense 1 partly after scientific Latin ringens.