American spelling of depolarise; to remove or reduce the electrical charge separation across a cell membrane.
From de- + polarize, using the -ize suffix common in American English. Functionally identical to the British depolarise.
The -ize/-ise spelling difference is basically a British-American split that happened in the 1700s, with American English standardising the -ize ending for verbs!
Complete word intelligence in one call. Free tier — 50 lookups/day.