[f. as prec. after harmonicon, etc.] (See quot.)
1834. Penny Cycl., II. 165/2. Apollonicon, the name given to a chamber organ of vast power, supplied with both keys and barrels … first exhibited … in 1817.
a. 1849. H. Coleridge, Ess., I. 305. Sing ‘Songs of Reason’ to the grinding of a steam apollonicon.
