a. [f. L. columna + -FORM.] Column-shaped.
1816. G. S. Faber, Orig. Pagan Idol., II. 412. A circular columniform altar blazing with fire.
1848. Dana, Zooph., 507. Tubercles echinate, prominent, columniform.
1876. Gross, Dis. Bladder, 56. The columniform bladder.
