noun
Civil Aviation College; College of Aeronautics
Official name of a Japanese aviation training institution. Often abbreviated as COA.
彼は航空大学校を卒業してパイロットになった。
He graduated from the Civil Aviation College and became a pilot.
Compound of 航空 (aviation) + 大学校 (college, training school). The exact historical derivation is uncertain; the name is conventionally associated with the Civil Aviation College.