質點 Save Sign in to save words Simplified: 质点 zhìdiǎn ㄓˋ ㄉㄧㄢˇ point mass particle Character by character 質(zhì)character 點(diǎn)point A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0