Urtica :: Urtica (n.) A genus of plants including the common nettles. See Nettle, n..
Urticaceous :: Urticaceous (a.) Of or pertaining to a natural order (Urticaceae) of plants, of which the nettle is the type. The order includes also the hop, the elm, the mulberry, the fig, and many other plants..
Urtical :: Urtical (a.) Resembling nettles; -- said of several natural orders allied to urticaceous plants.
Urticaria :: Urticaria (n.) The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo..
Urticate :: Urticate (v. t. & i.) To sting with, or as with, nettles; to irritate; to annoy..