Like some nerve cells

• Lacking radiating processes, as nerve cells
• Electrically balanced, in chemistry
• Like nerve cells with no radiating processes
• Lacking direction, electrically
• Having no axes
• Lacking + or -, electrically
• Having no radiating processes, as nerve cells
• Like hydra neurons

Wiktionary Word definitions in Wiktionary
a. 1 Having no polarity 2 # (context chemistry physics English) Having no dipole 3 (context geometry English) Orthogonal under the polar pairing between the symmetric algebra of a vector space and its dual.