hydrogen
/ˈhaɪdɹədʒ(ə)n/
B1 · Intermediate★★★☆☆
Simple Meaning
a very light gas that has no color or smell and is one of the elements that makes water.
When to Use
📚Academic Writing⚙️Technical📰News & Media
Intermediate — can handle common situations
Examples in Conversation
“Hydrogen is the most common element in the universe.”
“Some cars now run on hydrogen instead of gasoline.”
Learning Path
▶Full Definition
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.