Definition of "prestart" [prestart]

• Prior to the beginning of a race (adjective)
• The countdown immediately before the start of a race. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "But the command to prestart the APU made the shuttle hum with life, as though the spaceship knew its moment of glory was not far off now."
• "Discovery, we advise you proceed directly to APU prestart."
• "They swarmed over one engine, then the other, checking fluid levels and throttle settings as they completed the prestart checklist."