A navigation mechanism, as on an aircraft, that automatically maintains a preset course. Also called robot pilot.
A state of mind in which one acts without deliberate effort or self-awareness: "men who are, sexually speaking, on automatic pilot” ( Gloria Steinem).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.