nostrum for learners of EnglishPowered by COBUILD (nɒstrəm)
Word forms: nostrums
1. countable noun [usu pl]
You can refer to ideas or theories about how something should be done as nostrums, especially when you think they are old-fashioned or wrong in some way. [formal] ⇒ ...yesterday's failed socialist nostrums. [Also + of]
2. countable noun
If you refer to a medicine as a nostrum, you mean that it is not effective or has not been tested in a properscientific way. ⇒ ...pills, tablets, and other nostrums claiming to be magic potions.