thūpika

adjective having domed roofs (“house-tops” Ja.vi.116 (of a Vimāna = dvādasayojanika maṇimayakañcanathūpika; cp. p. Ja.vi.117: pañcaṭhūpaṃ vimānaṃ explained as pañcahi kūṭāgārehi samannāgataṃ).

from thūpa. The ika applies to the whole compound