wind tee

[ wind ]
/ wɪnd /

noun

a large, T-shaped weather vane on or near an airfield.
Also called air tee, landing tee.

Origin of wind tee

An Americanism dating back to 1930–35

British Dictionary definitions for air tee

wind tee
/ (wɪnd) /

noun

a large weather vane shaped like a T, located at an airfield to indicate the wind direction