Definition, Meaning & Synonyms
oxygen
noun
/ˈɒk.sɪ.dʒən/
Definition
A chemical element with the symbol O and atomic number 8, oxygen is a colorless, odorless gas essential for life on Earth.
Examples
- Plants produce oxygen through the process of photosynthesis.
- Humans need oxygen to survive and breathe it in from the air.
- Oxygen makes up about 21% of the Earth’s atmosphere.
Meaning
Oxygen is a vital element that supports respiration in living organisms and is involved in combustion and rusting processes.
Synonyms
- O2
- Air
- Vital gas
