a rainbow that appears without rain

WEATHERBOW :

(NOUN) :
1. THE SIDE OF THE BOW TOWARD THE WIND
2. A RAINBOW THAT APPEARS WITHOUT RAIN
3. A JACK OF ALL TRADES

ALTERNATE :
WEATHERBOWER :
(NOUN) :
1. A STRUCTURE BUILT FROM GATHERED MATERIALS
2. A PORTAL TO ANOTHER DIMENSION
3. A NEST