chiết quang

== Vietnamese == === Etymology === Sino-Vietnamese word from 折光 (“refraction”). === Pronunciation === (Hà Nội) IPA(key): [t͡ɕiət̚˧˦ kwaːŋ˧˧] (Huế) IPA(key): [t͡ɕiək̚˦˧˥ kwaːŋ˧˧] (Saigon) IPA(key): [ciək̚˦˥ waːŋ˧˧] === Adjective === chiết quang refractive; refringent