tricolour

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++tri·col·our British English, tricolor American English /ˈtrɪkələ $ ˈtraɪˌkʌlər/ noun [countable]  Pa flag with three equal bands of different colours, especially the national flags of France or Ireland 三色旗〔有三条相同宽度色带的旗帜，尤指法国或爱尔兰国旗〕

Examples from the Corpus

tricolour• The Who accordingly took the Dublin stage in specially made green, white and gold tricolour gear.• A lank forelock fell from beneath the hat bearing the tricolour cockade.• And I also know that certain shops in Northern Ireland refused to display it because of the tricolour so that accusation is quite legitimate.

tri·col·our nounChineseSyllable  

bands a Corpus flag colours, different three equal of with especially

tricolour
tri‧col‧our British English, tricolor American English /ˈtrɪkələ $ ˈtraɪˌkʌlər/ noun [countable]
a flag with three equal bands of different colours, especially the national flags of France or Ireland

tri·col·our (US tri·color) BrE /ˈtrɪkələ(r)/ 🔊NAmE /ˈtraɪkʌlər/ 🔊 noun [countable] a flag which has three bands of different colours, especially the French and Irish national flags 三色旗（尤指法国和爱尔兰的国旗）