- the US name for tailplane
WordReference Random House Unabridged Dictionary of American English © 2025
hor′izon′tal sta′bilizer, [Aeron.]
- Aeronauticsthe horizontal surface, usually fixed, of an aircraft empennage, to which the elevator is hinged. Also called,[esp. Brit.,] tail plane.
Collins Concise English Dictionary © HarperCollins Publishers::
'horizontal stabilizer' also found in these entries (note: many are not synonyms or translations):