Hydrogen

Quick meaning: Hydrogen is a noun meaning (uncountable) The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.

Meaning

(uncountable) The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.

More Meanings

1. (uncountable) Molecular hydrogen (sense 1; symbol H₂), a colourless, odourless and flammable gas at room temperature.
2. (uncountable) Synonym of protium (“the lightest and most common isotope of hydrogen (sense 1; symbol H, ¹H, or 11H), as contrasted with deuterium and tritium”).

Example Sentences

A large tank of hydrogen constituted most of the bulk of that rocket.

Our professor then reminded us that a hydrogen ion is merely a proton, and thus we should think about acid-base theory as we consider this problem further.

The ignis fatuus or Jack a lantern, ſo frequently alluded to by poets, is ſuppoſed to originate from the inflammable air, or Hydrogene, given up from moraſſes; […]

[Jacques] Charles was the first to send up a hydrogen balloon, 12 feet in diameter, which rose 3,123 feet, disappeared in the clouds, and fell at the distance of 15 miles.

Word Forms

• hydrogens

Synonyms for hydrogen

Depending on context, synonyms include hydrogenium, waterstuff, dihydrogen, protium, h.

Related Words

Related dictionary entries include h, oxygen, selenide, hexafluoride, peroxide, hydrocarbon.

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