different between dihydrogen vs helium

English

Etymology

di- +? hydrogen

Noun

dihydrogen (uncountable)

1. (chemistry) The divalent radical formed from two separate hydrogen atoms or ions
2. (chemistry, modifying a noun) Describing a dihydrogen bond
3. (inorganic chemistry) The hydrogen molecule H₂

Usage notes

• Used informally in dihydrogen monoxide, the supposed scientific name for water
• Used in mixed salts, such as calcium dihydrogen phosphate

Derived terms

• calcium dihydrogen phosphate
• dihydrogen arsenate
• dihydrogen monoxide
• dihydrogen oxide
• dihydrogen phosphate

English

Etymology

From New Latin helium, from Ancient Greek ????? (h?lios, “sun”) (because its presence was first theorised in the Sun's atmosphere) with the suffix +? -ium.

Pronunciation

• enPR: h?'l??m, IPA^(key): /?hi?li.?m/
• Hyphenation: he?li?um

Noun

helium (countable and uncountable, plural heliums)

2. (uncountable) The second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
3. (countable) A form or sample of the element.

Synonyms

• E939 when used as a packaging gas

Derived terms

Related terms

• helio-
• Helios

Translations

References

• Helium on the British Royal Society of Chemistry's online periodic table

Afrikaans

Noun

helium (uncountable)

1. helium

Czech

Alternative forms

• hélium

Etymology

From Latin helium.

Pronunciation

• IPA^(key): [????l?jum]
• Hyphenation: he?lium

Noun

helium n

1. helium

Declension

Danish

Noun

helium n (definite singular heliummet or heliumet)

1. (uncountable) helium (chemical symbol He)

Dutch

Etymology

Borrowed from English helium. Derived from Ancient Greek ????? (h?lios).

Pronunciation

• IPA^(key): /??e?.li.?m/
• Hyphenation: he?li?um

Noun

helium n (uncountable)

1. helium

Derived terms

• heliumatoom
• heliumballon
• heliumgas

Finnish

Noun

helium

1. helium

Declension

Latin

Etymology

From Ancient Greek ????? (h?lios, “sun”) +? -ium (chemical element suffix).

Pronunciation

• (Classical) IPA^(key): /?he?.li.um/, [?he?li???]
• (Ecclesiastical) IPA^(key): /?e.li.um/, [???lium]

Noun

h?lium n (genitive h?li?); second declension

1. (New Latin, chemistry) helium

Declension

Second-declension noun (neuter).

Descendants

• ? Italian: elio

Limburgish

Pronunciation

• IPA^(key): [?he?????m]

Noun

helium n

1. (uncountable) helium
2. A part of helium

Inflection

Malay

Alternative forms

• ???????

Etymology

From English helium, from New Latin helium, from Ancient Greek ????? (h?lios).

Pronunciation

• IPA^(key): /heliom/
• Rhymes: -iom, -jom, -om

Noun

helium (Jawi spelling ??????)

1. helium (chemical element)

Northern Sami

Pronunciation

Etymology

Borrowed from Norwegian helium.

Noun

h?lium

1. helium

Inflection

Further reading

• Koponen, Eino; Ruppel, Klaas; Aapala, Kirsti, editors (2002-2008) Álgu database: Etymological database of the Saami languages?^[1], Helsinki: Research Institute for the Languages of Finland

Norwegian Bokmål

Noun

helium n (definite singular heliumet)

1. (uncountable) helium (chemical symbol He)

Norwegian Nynorsk

Noun

helium n (definite singular heliumet)

1. (uncountable) helium (chemical symbol He)

Swedish

Pronunciation

• IPA^(key): /?he?l??m/

Noun

helium n (definite singular heliumet or heliet or helium)

1. (uncountable) helium

Declension