noun, plural ti·sanes [ti-zanz, –zahnz; French tee-zan] /tɪˈzænz, -ˈzɑnz; French tiˈzan/.
- (italics) French. aromatic or herb-flavored tea.
- Obsolete. a ptisan.
- an infusion of dried or fresh leaves or flowers, as camomile
n.1931, from French tisane; earlier ptisan (14c.), from Latin ptisana, from Greek ptisane “crushed barley,” related to ptissein “to winnow” (see pestle).