noun
multicolorfin rainbowfish
A species of wrasse (Parajulis poecilepterus) found in coastal waters of Japan and East Asia. The name is usually written in katakana as キュウセン.
堤防からキュウセンが釣れた。
I caught a multicolorfin rainbowfish from the breakwater.
キュウセンは食用にもなる美しい魚だ。
The multicolorfin rainbowfish is a beautiful fish that is also edible.
The origin of the name キュウセン is uncertain. The kanji forms 求仙, 九仙, and 気宇仙 are ateji and not etymologically related to the word's derivation.