depolarizing block

[dē-pōlə-rī′zĭng]
n.
  1. Paralysis of skeletal muscle associated with loss of polarity of the motor end plate, as occurs following administration of succinylcholine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.