phát quang

== Vietnamese == === Pronunciation === (Hà Nội) IPA(key): [faːt̚˧˦ kwaːŋ˧˧] (Huế) IPA(key): [faːk̚˦˧˥ kwaːŋ˧˧] (Saigon) IPA(key): [faːk̚˦˥ waːŋ˧˧] === Etymology 1 === Sino-Vietnamese word from 發光. ==== Noun ==== phát quang luminescence === Etymology 2 === phát (“to slash”) +‎ quang (“for clearing”). ==== Verb ==== phát quang to clear some obstacle, like wild trees, for improved vision