the world > plants > particular plants > cultivated or valued plants > particular medicinal plants or parts > non-British medicinal plants > [noun] > Chinese rhubarb (3)
Originally: an exotic plant producing the medicinal rootstock known as rhubarb, rhabarbarum, or rhapontic (see sense A. 2a) (later identified as…
The dried rootstock of any of various species of rhubarb, imported to Europe from Asia (esp. China) and used medicinally as a purgative; a…
= rhubarb, n. 2a. Cf. rhabarbarum, n.