formicarium|fɔːmɪˈkɛərɪəm| [a. med.L: see formicary.] = formicary. 1834Medwin Angler in Wales I. 161 For I found that our bungalow..was a ‘formicaria’ [sic].1863Bates Nat. Amazon I. 32 A Formicarium or ant-colony.1892Edin.Rev. July 46 The formicarium or burrow of the ants.