Definition of pulvinate in US English:

pulvinate

adjective

  • 1Chiefly Botany and Entomology. Resembling a cushion in shape, moderately convex.

  • 2Botany. Of a leaf or leaflet: having a pulvinus; = pulvinated.

Origin

Early 19th century; earliest use found in Robert Kaye Greville (1794–1866), botanist. From classical Latin pulvīnātus cushion-shaped, in scientific Latin also moderately convex from pulvīnus cushion + -ātus. Compare French pulviné furnished with cushions or pillows, (of the surface of a fruit) having ridges, cushion-shaped, moderately convex.

Pronunciation

pulvinate

/ˈpʌlvɪneɪt/