rainfly
/ˈreɪnflaɪ/noun
(pl. -flies)
1
- N. Amer. the flysheet of a tent〈北美〉（帐篷的）门帘。
2
- W. Indian a winged ant or termite, seen in numbers after rain〈西印度〉雨蚁（雨后大量出现的飞蚂蚁或白蚁）。