ozone
gb/ˈoʊzˌoʊn/ us/ˈoʊzˌoʊn/
B2
Inglês
~ 9100
Acepções
0 acepção
Substantivo
technical
B2
entity
1
triatomic oxygen gas in air
A special kind of oxygen gas with three atoms, found in the air; high in the sky it blocks dangerous sun rays, but near the ground it can be harmful to people and plants.
Padrão de uso:
ozone in [a part of the atmosphere]
Erro comum:
Learners often confuse ozone with oxygen and think they are the same. Explain that ozone is made of three oxygen atoms (O₃), while normal oxygen in the air is O₂. Learners may also wrongly connect the phrase "ozone layer" directly with climate warming; clarify that ozone mainly blocks UV light, while greenhouse gases like CO₂ are more important for warming.
Sinônimos
O₃ (Chemical symbol used in scientific writing; less common in general news or everyday speech.)
|
trioxygen (Formal chemical term; rare outside specialized scientific contexts.)
Colocações
ozone layer
|ground-level ozone
|stratospheric ozone
|ozone pollution
|ozone concentration
|ozone hole
Temas
science
|environment
|weather
|nature
Exemplos
- The ozone layer absorbs most of the sun’s harmful ultraviolet radiation.
- Scientists are worried about rising levels of ground-level ozone in large cities.
- International agreements have helped slow the depletion of stratospheric ozone over Antarctica.
- High ozone readings today have triggered a health warning for people with asthma.
- Satellites are used to monitor changes in atmospheric ozone around the globe.
Exemplos para estudantes
- The ozone layer protects our skin from the sun.
- In many big cities, ground-level ozone is a serious problem in summer.
- Scientists measure ozone in the air every day.
- Some chemicals can damage ozone in the atmosphere.
Substantivo
literary
C1
entity
2
fresh, bracing seaside air
Fresh, clean air that feels strong and cool, often near the sea or after rain and wind.
Padrão de uso:
the ozone at [a place]
Erro comum:
Learners may think this use always refers to the chemical meaning of ozone. Explain that here it is a literary way to talk about fresh, strong air, especially near the sea, and is less common in everyday speech.
Sinônimos
sea air (More common and neutral; directly mentions the sea, while "ozone" sounds a bit literary or old-fashioned.)
|
fresh air (Very general; does not suggest the specific sharp, seaside quality implied by "ozone".)
Antônimos
stale air (Describes air that is not fresh, often indoors or polluted, which contrasts with clean, bracing ozone-rich air.)
Colocações
breathe in the ozone
|sea ozone
|the ozone at the seaside
|smell the ozone
Temas
nature
|travel
|weather
|core_vocabulary
Exemplos
- We walked along the cliffs, breathing in the sharp ozone from the sea.
- She said a week of ozone and sunshine was exactly what she needed to recover.
- The ozone on the coast made the early-morning run feel exhilarating.
- You can almost taste the ozone after a heavy storm passes.
- City dwellers often dream of escaping to the ozone of the seaside.
Exemplos para estudantes
- We go to the sea to breathe the ozone.
- The strong ozone by the ocean wakes me up.
- After the storm, the ozone in the air feels very fresh.
- He moved to the coast for the sun and the ozone.
Gramática
Forma no dicionário
ozone
AFI
GB/ˈoʊzˌoʊn/
US/ˈoʊzˌoʊn/
Sílabas e tonicidade
ozone (1 sílaba)
Stress on 1st syllable (ozone)
Formas da palavra
Noun
- Base: ozone
- Plural: ozone
Família de palavras
Advanced or less common
ozonation
noun
ozonize
verb
ozonise
verb
Expressões
ground-level ozone
1/ɡɹˈaʊnd lˈɛvəl ˈoʊzˌoʊn/
fixed phrase
technical
ozone near the ground as pollutant
Ozone that is close to the ground, where people breathe it, and that can harm health and plants.
Exemplos
- Ground-level ozone is a major component of summer smog in many big cities.
- Children and older adults are especially sensitive to ground-level ozone.
hole in the ozone layer
1/hˈoʊl ˈɪn ðə ˈoʊzˌoʊn lˈeɪɚ/
fixed phrase
technical
area of severely depleted ozone
A large area in the ozone layer where there is much less ozone than normal.
Exemplos
- The hole in the ozone layer over Antarctica has started to slowly shrink.
- Scientists first reported a hole in the ozone layer in the mid-1980s.
ozone alert
1/ˈoʊzˌoʊn əlˈɚt/
fixed phrase
technical
public warning about high ozone
An official warning that the amount of ozone in the air is too high and may be dangerous to health.
Exemplos
- The city issued an ozone alert and advised people to limit outdoor exercise.
- During an ozone alert, residents are asked to use public transport instead of driving.
ozone depletion
1/ˈoʊzˌoʊn dɪplˈiʃən/
fixed phrase
technical
loss of stratospheric ozone over time
The gradual loss of ozone in the ozone layer, usually because of human-made chemicals.
Exemplos
- Ozone depletion was largely caused by chlorofluorocarbons used in old spray cans and refrigerators.
- Ozone depletion increases the risk of skin cancer and eye damage.
ozone layer
1/ˈoʊzˌoʊn lˈeɪɚ/
fixed phrase
technical
stratospheric ozone-rich protective layer
The part of the air high above the Earth that has a lot of ozone and blocks most of the sun’s dangerous ultraviolet rays.
Exemplos
- The discovery of a hole in the ozone layer caused global concern in the 1980s.
- Without the ozone layer, life on Earth would be exposed to far more harmful radiation from the sun.
- International agreements have helped to protect the ozone layer from damaging chemicals.