NOSTRUM

nostrum. Nostrum, n. a medicin, the ingredients of which are kept secret

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Nos″trum (–trŭm), n.; pl. Nostrums (–trŭmz). [[Neut. sing. of L. noster ours, fr. nos we. See Us.]] 1. 1. A medicine, the ingredients of which are kept secret for the purpose of restricting the profits of sale to the inventor or proprietor; a quack medicine.
2. 2. Any scheme or device proposed by a quack.
The incentives of agitators, the arts of impostors and the nostrums of quacks. Brougham.