(1):
(a.) Having the limb of a tubular corolla or calyx divided into two unequal parts, one projecting over the other like the lips of a mouth, as in the snapdragon, sage, and catnip.
(2):
(n.) A plant of the order Labiatae.
(3):
(a.) Belonging to a natural order of plants (Labiatae), of which the mint, sage, and catnip are examples. They are mostly aromatic herbs.
(4):
(v. t.) To labialize.