hydrogen

noun C1

Meaning

Hydrogen is a colorless, odorless, and highly flammable diatomic gas (H₂) that serves as the simplest and most abundant element in the universe, playing a crucial role in various chemical reactions, including the formation of water and organic compounds,
💡 While "hydrogen" is often associated with energy production and fuel cells, it is important to distinguish between its various forms and applications, particularly in scientific contexts where precision is crucial.

Example Sentences

Hydrogen is a clean fuel that produces only water when burned .
Hydrogen is a key element in renewable energy research and development .
Hydrogen is a key element in sustainable energy production methods .
Hydrogen is becoming a key resource in sustainable energy projects .

Never forget "hydrogen"

Set a daily goal, reinforce with word cards and games, and track your progress in the Vocab5000 app — learn every C1 level word permanently with our science-based repetition system.

Vocab5000