Definition of "saltpetre"

saltpetre

  • noun

    usually uncountable, plural saltpetres

    1. (originally) Potassium nitrate.  

    2. (uncommon) Sodium nitrate.  

  • verb

    third-person singular simple present saltpetres, present participle saltpetring, simple past and past participle saltpetred

    1. (transitive) To treat with saltpetre.