Webster's 1828 Dictionary
ANATRON
n.[Gr. niter. ] 1. Soda or mineral fixed alkali.
2. Spume or glass gall, a scum which rises upon melted glass, in the furnace, and when taken off, dissolves in the air, and then coagulates into common salt.
3. The salt which collects on the walls of vaults.
Webster's 1913 Dictionary
ANATRON
An "a *tron, n. Etym: [F. anatron, natron, Sp. anatron, natron, fr. Ar. al-natr. See Natron, Niter. ] [Obs. ]
1. Native carbonate of soda; natron.
2. Glass gall or sandiver.
3. Saltpeter. Coxe. Johnson.
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