Meaning of barrel roll

bar'rel roll"

Pronunciation: [key]
— Aeron. Aeron.
  1. a maneuver in which an airplane executes a complete roll by revolving once around its longitudinal axis.

bar•rel-roll

Pronunciation: (bar'ul-rōl"), [key]
— v.i. Aeron.
  1. to perform a barrel roll.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.