trim tab

or trimming tab

noun Aeronautics.

an independently controlled tab set in the trailing edge of a control surface, as an elevator, aileron, or rudder, to hold it in a position suitable for stabilizing the aircraft in a flight attitude.

Words nearby trim tab

trim, trim die, trim one's sails, trim rail, trim size, trim tab, trimaran, trimble, trime, trimer, trimerous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for trim tab

trim tab

noun

a small control surface attached to the trailing edge of a main control surface to enable the pilot to trim an aircraft

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012