惠更斯 Save Sign in to save words huìgēngsī ㄏㄨㄟˋ ㄍㄥ ㄙ Huygens (name) Christiaan Huygens (1629-1695), Dutch mathematician and astronomer Character by character 惠(huì)surname Hui 更(gēng)change or replace 斯(sī)Slovakia A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0