SUNBOW Meaning of SUNBOW in English /sun"boh'/ , n.a bow or arc of prismatic colors like a rainbow, appearing in the spray of cataracts, waterfalls, fountains, etc. [ 1810-20; SUN + BOW 2 ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012