a. [f. L. columella + -FORM.] Shaped like a columella or little pillar.
1839–47. Todd, Cycl. Anat., III. 296/2. A moderately long and slender columelliform shaft.
1855. Owen, Skel. & Teeth, 217. The columelliform stapes passes through a notch instead of a foramen to attain the tympanic membrane.
