Alch. Also acanor; and in 5 athenor, 7 athanar. [ad. Arab. at-tannūr, i.e., at = al the, tannūr furnace, according to Dozy, a. Heb. or Aramaic tannūr, f. root nūr fire. Also in Fr. athanor, Sp. atanor, pipe of a fountain.] A digesting furnace used by the alchemists, in which a constant heat was maintained by means of a tower which provided a self-feeding supply of charcoal. Also fig.
1471. Ripley, Comp. Alch. (Ashm. 1652), v. 149. Thy Fornace Whych wyse men do call Athenor.
1610. B. Jonson, Alch., II. iii. In the lent heat of Athanor.
1651. Biggs, New Disp., § 141. They are not therefore digested in the Athanor of our Œconomy.
1752. Johnson, Rambl., No. 199, ¶ 3. I have sat whole weeks without sleep by the side of an athanor, to watch the moment of projection.
1863. Watts, Dict. Chem., I. 430.