assist-control ventilation

[ə-sĭstkən-trōl]
n.
  1. A method of artificial respiration in which inspiration is produced automatically after a set interval if the person has not begun to inspire earlier.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.