ㄅㄨˋㄉㄥˇㄏㄠˋbùděnghào

不等号
  1. 數學中表兩邊不一相等符號不等)​、>)​、<)​、≤(等於)​、≥(等於)​

inequality sign (i.e. not equal, ≠ or greater than >, or less than <)​