hydrogen

C1 Topic:Science & Research

US /ˈhaɪdɹəd͡ʒ(ə)n/ UK /ˈhaɪdɹəd͡ʒ(ə)n/ See IPA manual

noun Freq #8914

Meanings

1

noun
The lightest chemical element (symbol H), a colorless, odorless, highly flammable gas.

The warning label on the hydrogen balloon said to keep it away from open flames.

Thesaurus

Synonyms

hydrogeniumwaterstuff

Word family

Forms hydrogenoushydrogens

Derived forms antihydrogenbiohydrogencarbo-hydrogendehydrogenasedehydrogenisedehydrogenizedihydrogenhyceanhydrazinehydrichydricityhydriodic

Related forms hydr-hydratehydridehydrionhydro-hydrogenasehydrogenitehydronium

Etymology

Etymology tree Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Hellenic *údōr Ancient Greek ῡ̆̔́δωρ (hū̆́dōr) Ancient Greek ὑδρο- (hudro-)lbor. French hydro- Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -γενής (-genḗs)lbor. French -gène French hydrogènebor. English hydrogen Borrowed from French hydrogène (“hydrogen”), coined by the French chemists Louis-Bernard Guyton de Morveau (1737–1…

hydrogène French ῠ̔δρο- Ancient Greek *wed- Proto-Indo-European -γενής Ancient Greek *ǵenh₁- Proto-Indo-European

View etymology graph ->

Topics

Science & Research Materials & Substances Word Formation & Derivatives

# hydrogen

**Type:** Word
**Level:** C1
**Part of speech:** noun
**IPA (US):** ˈhaɪdɹəd͡ʒ(ə)n
**IPA (UK):** ˈhaɪdɹəd͡ʒ(ə)n
**Frequency rank:** 8914

## Meanings
1. The lightest chemical element (symbol H), a colorless, odorless, highly flammable gas.

## Examples
- The warning label on the hydrogen balloon said to keep it away from open flames.

## Synonyms
- hydrogenium
- waterstuff

## Derived Forms
- antihydrogen
- biohydrogen
- carbo-hydrogen
- dehydrogenase
- dehydrogenise
- dehydrogenize
- dihydrogen
- hycean
- hydrazine
- hydric
- hydricity
- hydriodic

## Related Forms
- hydr-
- hydrate
- hydride
- hydrion
- hydro-
- hydrogenase
- hydrogenite
- hydronium

## Roots and Affixes
- Root: hydrogène
- Root: ῠ̔δρο-
- Root: *wed-
- Root: -γενής
- Root: *ǵenh₁-

## Etymology
Etymology tree Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Hellenic *údōr Ancient Greek ῡ̆̔́δωρ (hū̆́dōr) Ancient Greek ὑδρο- (hudro-)lbor. French hydro- Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -γενής (-genḗs)lbor. French -gène French hydrogènebor. English hydrogen Borrowed from French hydrogène (“hydrogen”), coined by the French chemists Louis-Bernard Guyton de Morveau (1737–1…

## AI Etymology
Hydrogen is borrowed from French hydrogène (“hydrogen”), coined by the French chemists Louis-Bernard Guyton de Morveau (1737–1. The historical chain includes hydrogène (French), ῠ̔δρο- (Ancient Greek), *wed- (Proto-Indo-European), -γενής (Ancient Greek), and *ǵenh₁- (Proto-Indo-European). The surrounding word family includes derived forms such as antihydrogen, biohydrogen, carbo-hydrogen, and dehydrogenase and related forms such as hydr-, hydrate, and hydride. In present use it covers the lightest chemical element (symbol H), a colorless, odorless, highly flammable gas.

## Topics
- Science & Research
- Materials & Substances
- Word Formation & Derivatives

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