noun
dry fly
In fly fishing, a dry fly is an artificial fly that floats on the water surface, imitating an adult insect.
渓流でドライフライを使うと、魚が水面に飛び出す瞬間が見られる。
When you use a dry fly on a mountain stream, you can see the moment a fish breaks the surface.
Variant with interpunct; less common in running text.
A wet fly is designed to sink below the surface, imitating a nymph or drowned insect, while a dry fly floats.
Borrowed from English 'dry fly'.