\Nos"trum\ (-tr[u^]m), n.; pl. {Nostrums} (-tr[u^]mz).
[Neut. sing. of L. noster ours, fr. nos we. See {Us}.]
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. Any scheme or device proposed by a quack.
         The incentives of agitators, the arts of impostors
         and the nostrums of quacks.           --Brougham.