Obs. [a. Sp. anatron, ad. Arab. an-naṭrûn, i.e., an = al the + naṭrûn.] Native carbonate of soda: see NATRON.
1706. Phillips, Anatron or Natron, a kind of Salt drawn from the water of the River Nile.
1753. Chambers, Cycl. Supp., Anatron is of a cineritious colour, and bitter taste.