hydrogen

Definition from Wiktionary, a free dictionary

Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Noun 1.3.1 Derived terms 1.3.2 Related terms 1.3.3 Translations 1.3.4 Synonyms 1.3.5 Hyponyms 2 Danish 2.1 Noun 2.1.1 Synonyms 3 Norwegian 3.1 Noun

[edit] English

Chemical element
H
	Next: helium (He)

[edit] Etymology

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

[edit] Pronunciation

• IPA: /ˈhaɪdɹədʒən/
•  Audio (US)^{help, file}
• Hyphenation: hy‧dro‧gen

[edit] Noun

hydrogen (plural hydrogens)

Wikipedia

1. The lightest chemical element (symbol H) with an atomic number of 1 and atomic weight of 1.00794.
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.

[edit] Derived terms

[edit] Related terms

[edit] Translations

[edit] Synonyms

• E949 when used as a packaging agent

[edit] Hyponyms

• deuterium
• protium
• tritium

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[edit] Danish

[edit] Noun

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

1. (chemistry) hydrogen

[edit] Synonyms

• brint c.

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[edit] Norwegian

[edit] Noun

hydrogen

1. hydrogen