noun
: any of various unidentified moving objects repeatedly reported as seen in the air and usually alleged to be saucer-shaped or disk-shaped — called also flying disk
noun
: any of various unidentified moving objects repeatedly reported as seen in the air and usually alleged to be saucer-shaped or disk-shaped — called also flying disk
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012