heavy water

English

Diagram of a heavy-water molecule. The superscript 2's denote atomic mass number. The notation "²H", rather than "D", for deuterium, is what IUPAC favors.

Noun

heavy water (uncountable)

1. (inorganic chemistry) Water containing deuterium instead of normal hydrogen (protium); used as a moderator in nuclear reactors. Denoted ²H₂O, or less correctly, D₂O.

Alternative forms

• heavy-water

Synonyms

• D₂O
• ²H₂O
• deuterium oxide
• dideuterium oxide
• deuterium monoxide
• dideuterium monoxide
• deuterated water
• fully deuterated water
• deuterium water
• water-d2

Hypernyms

(deuterium water):

• deuterated water
• H₂O
• water

Coordinate terms

• light water
• semi-heavy water
• super-heavy water

Derived terms

• heavy-water / heavywater
• heavy-water reactor
• semiheavy water
• superheavy water

Translations

water containing deuterium instead of normal hydrogen

• Chinese:

  Mandarin: 重水 (zh) (zhòngshuǐ)

• Danish: tungt vand n
• Dutch: zwaar water (nl) n
• Faroese: tungt vatn n
• Finnish: raskasvesi (fi)
• French: eau lourde (fr) f
• German: schweres Wasser n
• Icelandic: þungt vatn n
• Indonesian: air berat (id)
• Italian: acqua pesante f
• Japanese: 重水 (ja) (じゅうすい, jūsui)
• Kazakh: ауыр су (auyr su)
• Navajo: tó nidaaz
• Norwegian:

  Bokmål: tungtvann (no) n, tungtvatn n

  Nynorsk: tungtvatn n, tungvatn n

• Persian: آب سنگین (fa) (âb-e sangin)
• Polish: ciężka woda (pl) f
• Portuguese: água pesada (pt) f, água deuterada f
• Romanian: apă grea (ro) f
• Russian: тяжёлая вода́ f (tjažólaja vodá)
• Spanish: agua pesada
• Swedish: tungt vatten n
• Tagalog: mabigat na tubig, tubig na mabigat
• Turkish: ağır su (tr)
• Vietnamese: nước nặng (vi)