Meaning & Definition of word "Oxygen"

Oxygen

/ˈɒksɪdʒən/

1. A chemical element (symbol O) with atomic number 8, that is a colorless, odorless, tasteless gas essential for respiration in most living organisms and for combustion.
- Example: Plants produce oxygen through the process of photosynthesis.
2. The element that is essential for life, forming compounds with most elements and is a component of water.
- Example: Without oxygen, humans and most animals cannot survive.
3. A gas that supports combustion and is found in the atmosphere at approximately 21% by volume.
- Example: The fire went out when the oxygen supply was cut off.
4. An essential molecule for cellular respiration in aerobic organisms.
- Example: The mitochondria in our cells use oxygen to produce energy.
5. In the context of chemistry, a reactive element that combines with a wide variety of substances.
- Example: Oxygen reacts with iron to form rust over time.

From French 'oxygène', coined by Antoine Lavoisier from ancient Greek 'oxys' (acid) and 'genes' (producer).

oxygen mask:

A device worn over the face to supply oxygen.

oxygen debt:

The amount of oxygen required after physical exercise to convert accumulated lactic acid to glucose.

fresh air and oxygen:

Refers to a refreshing aspect, often discussed in physical activity or relaxation.

aerobic:

Related to or requiring free oxygen.

hypoxia:

A deficiency in the amount of oxygen reaching the tissues.

oxidation:

The process of combining a substance with oxygen.

Meaning: Breath of life

Example Sentence: After that workout, all I need is a breath of oxygen.

Meaning: Vital force

Example Sentence: Without oxygen, this party is dead!