pulvinus

(pul′vī′nəs)

noun pl. pulvini

Bot. an enlarged area at the base of a petiole, at a node, or at the base of a panicled branch, producing movement by growth or swelling

Origin: ModL < L, pillow, elevation

See pulvinus in American Heritage Dictionary 4

noun pl. pul·vi·ni (-nīˌ)

A cushionlike swelling at the base of the stalk of a leaf or leaflet.

Origin:

Origin: Latin pulvīnus, cushion

link/cite print suggestion box

More from YD