hồng ngoại

== Vietnamese == === Etymology === Sino-Vietnamese word from 紅外, composed of 紅 (“crimson”) and 外 (“outside”). Compare Japanese 赤外 (sekigai, xích ngoại). === Pronunciation === (Hà Nội) IPA(key): [həwŋ͡m˨˩ ŋwaːj˧˨ʔ] (Huế) IPA(key): [həwŋ͡m˦˩ ŋwaːj˨˩ʔ] (Saigon) IPA(key): [həwŋ͡m˨˩ ŋwaːj˨˩˨] === Adjective === hồng ngoại infrared === See also === tử ngoại