I. adjective Date: 1974 extremely light in mass or weight , II. noun Date: 1974 a very light recreational aircraft typically for one person that is powered by a small gasoline engine
ULTRALIGHT
Meaning of ULTRALIGHT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012