Ptĭs'an, n.

(tĭz'an) (Synop., § 130), n. [Gr. πτισάνη, peeled barley, a drink made thereof, barley-water, from πτίσσειν, to peel, husk; Lat. ptisana, Fr. ptisane, tisane, It. & Sp. tisana.]

1. A decoction of barley with other ingredients.
2. (Med.) An aqueous medicine, containing little, if any, medicinal agent; a tisane. Dunglison.