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oxygen

oxygen

751 1.0
A colorless gas that people and animals need to breathe
  • noun
  • /ˈɑksɪdʒən/
translation icon : oxígeno
  • In developed countries, oxygen is typically continuously available in hospitals via piping systems.
  • oxygen levels
  • oxygen saturation
  • oxygen supply

Metabolism is taking food and oxygen and keeping us alive.

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Examples

  • I thought I might have to rent an oxygen tank to stay alive through the project.

    Academic text (2011)
  • Fire requires just three things, oxygen, fuel and heat.

  • But when we do this, we get more oxygen to the brain.

  • Half an hour with no oxygen to the brain.

  • My blood oxygen is good right now.

  • The fire must burn up all the oxygen around him.

  • One, you breathe in oxygen and breathe out carbon dioxide.

  • Metabolism is taking food and oxygen and keeping us alive.

  • A tube was passed into his trachea, and oxygen hissed into the room.

    Fiction book (1991)
  • Humans need to breathe in oxygen to survive.

Synonyms

O
vsoxygen
  • Specialized
13 1.0

A symbol for oxygen, the colorless gas we breathe

is written as the full word rather than a single letter symbol
oxy
vsoxygen
  • Informal
2 8.1

A gas needed for breathing and life

is the formal full name used in speech and scientific writing

Compounds

15 3.4

A covering you wear over the nose and mouth to give oxygen in emergencies or medical care

liquid oxygen
  • Specialized
3 4.8

A very cold pale blue liquid that helps fires burn, powers rockets, and helps sick people breathe

oxygen debt
  • Specialized
1 5.7

A short time after hard exercise when the body lacks oxygen and breathing becomes heavy to recover

oxygen acid
  • Specialized
6.6

A chemical that contains oxygen and acts like an acid in water

oxygen deficit
  • Specialized
4.7

A temporary lack of oxygen in the muscles during very hard exercise

oxygen waster
  • Offensive
8.8

A person people see as useless and as wasting resources by just living

Surface Forms

oxygen singular
oxygens plural

Etymology

Oxygen comes from Greek parts oxy- 'sharp' and -gen 'maker', because early scientists thought this substance made acids. The -gen part is the same as in generate ('to make'), which helps you remember why oxygen was named that way even though today we know it as the gas we need to breathe.