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