from
The Collaborative International Dictionary of English v.0.48
Sarsaparilla \Sar`sa*pa*ril"la\, n. [Sp. zarzaparrilla; zarza a
bramble (perhaps fr. Bisc. zartzia) + parra a vine, or
Parillo, a physician said to have discovered it.] (Bot.)
(a) Any plant of several tropical American species of
{Smilax}.
(b) The bitter mucilaginous roots of such plants, used in
medicine and in sirups for soda, etc.
[1913 Webster]
Note: The name is also applied to many other plants and their
roots, especially to the {Aralia nudicaulis}, the wild
sarsaparilla of the United States.
[1913 Webster]