hydrogen

From French hydrogène, coined by Louis-Bernard Guyton de Morveau, from Ancient Greek ὕδωρ (húdōr, “water”) + γεννάω (gennáō, “I bring forth”).

• (Received Pronunciation) IPA^(key): /ˈhaɪdɹədʒ(ə)n/
• (General American) enPR: hī'drəjən, IPA^(key): /ˈhaɪdɹədʒən/

• Audio (GA)

  (file)

• Hyphenation: hy‧dro‧gen

hydrogen (countable and uncountable, plural hydrogens)

1. The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
   • For quotations of use of this term, see Citations:hydrogen.
2. Molecular hydrogen (H₂), a colourless, odourless and flammable gas at room temperature.
3. An atom of the element.
4. A sample of the element.

• waterstuff
• E949 when used as a packaging agent

• deuterium
• protium
• tritium

• → Burmese: ဟိုက်ဒရိုဂျင် (huikda.ruigyang)

• hydrogen on Wikipedia.Wikipedia

hydrogen n (singular definite hydrogenet, not used in plural form)

1. hydrogen

• brint c

hydrogen n (definite singular hydrogenet) (uncountable)

1. hydrogen (chemical element, symbol H)

hydrogen n (definite singular hydrogenet) (uncountable)

1. hydrogen (chemical element, symbol H)

Borrowed from English hydrogen.

• (standard) IPA^(key): /ˈhədrɔˌɡɛn/

hydrogen m (uncountable)

1. hydrogen

• (obsolete) ulai

• adnewyddu hydrogen (“hydrogen renewability”)
• alcyleiddio hydrogen fflworid (“hydrogen fluoride alkylation”)
• bond hydrogen (“hydrogen bond”)
• derbynnydd hydrogen (“hydrogen acceptor”)
• halid hydrogen (“hydrogen halide”)
• hydrogen bromid (“hydrogen bromide”)
• hydrogen clorid (“hydrogen chloride”)
• hydrogen fflworid (“hydrogen fluoride”)
• hydrogen ïodid (“hydrogen iodide”)
• hydrogen perocsid (“hydrogen peroxide”)
• hydrogen sylffid (“hydrogen sulphide”)
• ïon hydrogen (“hydrogen ion”)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950-), “hydrogen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies