rainbowfish
/ˈreɪnbəʊfɪʃ/noun
(复同单, 或-fishes)
1- any of a number of small brightly coloured fish of warm waters, in particular虹鱼, 五彩鱼, 尤指：
1.1
- an Australian freshwater fish (genus Melanotaenia, family Melanotaenidae).澳大利亚淡水虹银汉鱼（虹银汉鱼属, 虹银汉鱼科）。
1.2
Celebes rainbowfish
a freshwater fish native to Sulawesi and popular in aquaria (Telmatherina ladigesi, family Atherinidae).西里伯斯虹鱼（拉丁名Telmatherina ladigesi, 银汉鱼科）。