a crystalline, poisonous alkaloid, C 22 H 27 NO 2 , obtained by extraction from lobelia: used chiefly in the form of its sulfate or hydrochloride as a respiratory stimulant and, because of its nicotinelike pharmacological action, as an agent to discourage tobacco smoking.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
the offspring of a zebra and a donkey.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.