— ohmic /oh"mik/ , adj.
/ohm/ , n.
the SI unit of electrical resistance, defined to be the electrical resistance between two points of a conductor when a constant potential difference applied between these points produces in this conductor a current of one ampere. The resistance in ohms is numerically equal to the magnitude of the potential difference. Symbolically represented by the capital greek letter Omega.
[ 1861; named after G. S. OHM ]