同余类 Save Sign in to save words Traditional (Taiwan): 同餘類 tóngyúlèi ㄊㄨㄥˊ ㄩˊ ㄌㄟˋ congruence class residue class math. Character by character 同(tóng)like 余(yú)surname Yu 类(lèi)kind A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0