from
The Collaborative International Dictionary of English v.0.48
Unipolar \U`ni*po"lar\, a. [Uni- + polar.]
1. (Physics) Having, or acting by means of, one pole only.
[1913 Webster]
2. (Anat.) Having but one pole or process; -- applied to
those ganglionic nerve cells which have but one radiating
process; -- opposed to multipolar.
[1913 Webster]
{Unipolar induction} (Elec.), induction, as in a conducting
circuit, by only one pole of a magnet.
{Unipolar stimulation} (Physiol.), the simulation sometimes
produced when one electrode of an induction apparatus is
applied to a nerve; -- called also {unipolar induction
action}. --Du Bois-Reymond.
[1913 Webster]