質心 Save Sign in to save words Simplified: 质心 zhìxīn ㄓˋ ㄒㄧㄣ center of mass physics Character by character 質(zhì)character 心(xīn)heart Other words read zhìxīn zhixin with other tones 知心 致信 置信 芝心 Often confused with zhixin 執行 自信 直行 值星 紙型 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0