hydrogen
noun
hy·dro·gen
ˈhī-drə-jən 
-dər-
: a nonmetallic gaseous chemical element with atomic number 1 that is the simplest and lightest of the elements and that is used especially in the processing of fossil fuels and the synthesis of ammonia
—often used before another noun
hydrogen gas
hydrogen atoms
a hydrogen vehicle
the hydrogen industry
see Chemical Elements Table compare deuterium, tritium
Examples of hydrogen in a Sentence
Recent Examples on the Web
These included battery manufacturing, renewable energy projects and, metals and hydrogen projects, as well as semiconductor manufacturing plants.
—
James Morton Turner, Discover Magazine, 9 Nov. 2024
The remaining ~5% will come from investment in battery electric and hydrogen aircraft that address primarily the regional aviation markets.
—Dean Donovan, Forbes, 4 Nov. 2024
The powerful magnetic fields can lift hydrogen up off the surface, which then follows the huge loops and glows brightly.
—Phil Plait, Scientific American, 25 Oct. 2024
The industry has invested significantly in developing sustainable aviation fuels and advancements with electric, hydrogen, and hybrid propulsion systems.
—Daniel Cote, Robb Report, 23 Oct. 2024
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James Morton Turner, Discover Magazine, 9 Nov. 2024
The remaining ~5% will come from investment in battery electric and hydrogen aircraft that address primarily the regional aviation markets.
—Dean Donovan, Forbes, 4 Nov. 2024
The powerful magnetic fields can lift hydrogen up off the surface, which then follows the huge loops and glows brightly.
—Phil Plait, Scientific American, 25 Oct. 2024
The industry has invested significantly in developing sustainable aviation fuels and advancements with electric, hydrogen, and hybrid propulsion systems.
—Daniel Cote, Robb Report, 23 Oct. 2024
See all Example Sentences for hydrogen
Dictionary Entries Near hydrogen
Cite this Entry
“Hydrogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen. Accessed 22 Nov. 2024.
Copy CitationKids Definition
hydrogen
noun
hy·dro·gen
ˈhī-drə-jən
: a chemical element that is the simplest and lightest of all chemical elements and is normally found alone as a colorless odorless highly flammable gas having two atoms per molecule see element
Etymology
from French hydrogène "hydrogen," from hydr- "water" and -gène "producer"; so called because when hydrogen gas burns, it combines with oxygen to produce water
Medical Definition
hydrogen
noun
hy·dro·gen
ˈhī-drə-jən
: a nonmetallic element that is the simplest and lightest of the elements and that is normally a colorless odorless highly flammable diatomic gas
—symbol H
see deuterium, tritium Chemical Elements Table
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