preflight

1. not comparableTaking place before the start of a flight.
2. not comparablecomputingServing to confirm that requests can be accepted, before sending an actual request.

   a CORS preflight request

plural preflights

1. An inspection of an aircraft before the start of a flight.
2. gymnasticsThe portion of the movement after launching from the springboard but before pushing off the vault.

   Between the preflight and postflight is the block, a rapid motion in which the gymnast’s hands hit the vault and she pushes herself off, converting the horizontal momentum from her sprint down the runway into vertical momentum.

   2024 July 27, Maggie Astor, “Your Guide to Olympic Gymnastics: Vault”, in The New York Times, archived from the original on 31 Jul 2024

present singular third person preflights · participle present preflighting · participle past preflighted · past preflighted

1. To perform an inspection of an aircraft before the start of a flight.