tenth of 10 heavenly trunks 十天干; tenth in order; letter "J" or roman "X" in list "A, B, C", or "I, II, III" etc; deca[cedict]
弧
húㄏㄨˊ
arc[cedict]
丁
dīngㄉㄧㄥ
surname Ding; cubes (of food); fourth of 10 heavenly trunks 十天干; fourth in order; letter "D" or roman "IV" in list "A, B, C", or "I, II, III" etc; butyl[cedict]