Quincuncial :: Quincuncial () Having the form of a quincunx.
Quincuncial :: Quincuncial () Having the leaves of a pentamerous calyx or corolla so imbricated that two are exterior, two are interior, and the other has one edge exterior and one interior; as, quincuncial aestivation..
Quincuncially :: Quincuncially (adv.) In the manner or order of a quincunx.