馬甲線 Save Sign in to save words Simplified: 马甲线 mǎjiǎxiàn ㄇㄚˇ ㄐㄧㄚˇ ㄒㄧㄢˋ (neologism, attested by 2013) (coll.) vertical groove visible on either side of the belly in a person with well-toned abs Character by character 馬(mǎ)surname Ma 甲(jiǎ)first of the ten Heavenly Stems 十天干 shítiāngān 線(xiàn)thread A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0