orphanarium UK /ˌɔː.fəˈnɛəɹi.əm/US /ˌɔɹ.fəˈnɛɹi.əm/ noun1 •(humorous, rare) An orphanage.And what of us who haven't got children of their own to beat ? ¶ Do we go without ? Or can you rent them from somewhere ? ¶ Hhmmmmmmm, time for a visit to the local orphanarium. — 2001 formsorphanariums