Thūpika (adjective) [from thūpa. The °ika applies to the whole compound] having domed roofs ("house-tops") Ja VI 116 (of a Vimāna = dvādasayojanika maṇimayakañcanathūpika; cf. page 117: pañcaṭhūpaṃ vimānaṃ, explained as pañcahi kūṭāgārehi samannāgataṃ).