a. Biol. [f. A- pref. 14 priv. + POLAR.] Having no poles or fibrous processes; sometimes applied to those nerve cells that have no polar connection with the nerve-fibers.
1859. Todd, Cycl. Anat. & Phys., V. 436/2. The ganglionic corpuscles termed by Stannius apolar cells.
1880. Bastian, Brain, iii. 48. Many of the so-called apolar nerve-cells may be nothing more than imperfectly developed ganglion cells.