Definition of auto-boot in US English:

auto-boot

noun

Computing
  • A boot or load which is performed automatically by a computer, especially after being switched on; a facility which allows a computer to do this.

verb

Computing
  • 1no object To boot or load automatically; to perform an auto-boot.

  • 2with object To cause (a computer, program, etc.) to boot or load automatically, especially after switching on.

Origin

1980s; earliest use found in Byte Magazine. From auto- + boot<br>1980s. From auto- + boot, after auto-boot, auto-booting.

Pronunciation

auto-boot

/ˈɔːtə(ʊ)buːt/