cubiform,a.|ˈkjuːbɪfɔːm| [f. L. cubus: see cubi- + -form.] Of the form of a cube, cube-shaped. 1730–6in Bailey (folio); thence in Johnson.1881W. B. Carpenter Microscope (ed. 6) 353 The genus Amphitetras..is chiefly characterized by the cubiform shape of its frustules.