hydrogen

word

/ˈhaɪdɹədʒən/
HY-druh-juhn
/hˈaɪdɹədʒən/
HY-druh-juhn

Definition

Hydrogen is a colorless, odorless gas that is the lightest and most abundant element in the universe. It is often used in chemistry and energy fields.

Usage & Nuances

'Hydrogen' is a scientific and neutral word, used mainly in academic, technical, and energy industry contexts. Common collocations: 'hydrogen fuel', 'hydrogen atom', 'liquid hydrogen'. Not used in everyday conversation unless discussing science or energy.

Example Sentences

Hydrogen is the most common element in the universe.

basic

Water is made of hydrogen and oxygen.

basic

Scientists use hydrogen in fuel cells.

basic

Many new cars are now powered by hydrogen fuel.

natural

The rocket was launched using liquid hydrogen.

natural

If you split water, you get hydrogen and oxygen gases.

natural