/ay"leuh ron'/ , n.
1. Aeron. a movable surface, usually near the trailing edge of a wing, that controls the roll of the airframe or effects maneuvers, as banks and the like.
2. a wall at the end of a roof with a single slope, as that of a church aisle.
[ 1905-10; ail ( e ) (see AISLE) + -eron dim. suffix ]