氘 [－]

Jyutping dou1
Pinyin dāo

Definitions (粵典–words.hk)
  1. 名詞
    係​氫​嘅​同位素​之一​，​符號​²​H​，​又​叫做​「​重氫​」​，​比氫多​一粒​中子
    deuterium; heavy hydrogen
    • 氘燃燒
      氘燃烧
      dou1 jin4 siu1
      deuterium fusion; deuterium burning
    • 氘代氯仿
      氘代氯仿
      dou1 doi6 luk6 fong2
      deuterated chloroform
Definitions (Wiktionary)
  1. character
    deuterium
    (syn.) 重氢, 重氫
Definitions (Unihan)
  1. deuterium
  2. Cangjie Input
    ONLL

氘 [－]

Jyutping
Pinyin dāo

Definitions (CC-CEDICT)
  1. deuterium 2H
  2. heavy hydrogen, isotope of hydrogen having 1 neutron in its nucleus, so atomic weight 2
Examples (粵典–words.hk)
  1. Cantonese
    氘燃烧
    氘燃燒
    dou1 jin4 siu1
    • deuterium fusion; deuterium burning
  2. Cantonese
    氘代氯仿
    氘代氯仿
    dou1 doi6 luk6 fong2
    • deuterated chloroform