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orvietan
From The Collaborative International Dictionary of English v.0.48:
Orvietan \Or`vi*e"tan\, n. [F. orvi['e]tan: cf. It. orvietano. So called because invented at Orvieto, in Italy.] A kind of antidote for poisons; a counter poison formerly in vogue. [Obs.] [1913 Webster]

