Angličtina

opacity

gb/oʊpˈæsəti/ us/oʊpˈæsəti/
C1 Angličtina
Významy
0 významů
Podstatné jméno C1 property
1

lack of transparency to light

Opacity is how much something blocks light.

Vzorec užití: the opacity of [material/object]
Častá chyba:
Learners sometimes confuse opacity (blocks light) with transparency (lets light through).
Synonyma
opaqueness (More direct and less formal; same meaning.) | cloudiness (Often suggests a liquid that is not clear, not any solid object.)
Antonyma
transparency (The quality of letting light pass through clearly.) | clarity (Often used for liquids or images being easy to see through.)
Kolokace
high opacity |low opacity |the opacity of glass |the opacity of water |reduce opacity |increase opacity |light opacity |optical opacity |surface opacity |measure opacity
Témata
materials |science |daily_life
Příklady
  • Frosted glass gets its opacity from the textured surface.
  • The lab measured the water’s opacity after the storm.
  • As the paint dried, its opacity increased and the wall color stopped showing through.
Učební příklady
  • This glass has high opacity.
  • The water has low opacity today.
Podstatné jméno technical C1 quantity
2

degree of being opaque

Opacity can also mean a level, like a number or percent.

Vzorec užití: an opacity of [number/percentage]
Častá chyba:
Don’t use *an opacity* to mean simply ‘something is opaque’ unless you are talking about a measurable level.
Synonyma
density (In everyday talk it can overlap, but density is not the same physical measure.)
Antonyma
transparency (Can also be measured as a level in similar contexts.)
Kolokace
opacity value |opacity level |opacity reading |opacity measurement |set the opacity |adjust the opacity |opacity percentage |opacity scale |opacity threshold |peak opacity
Témata
science |measurement |materials
Příklady
  • The display lets you set an opacity of 70%.
  • The sensor reports opacity readings every minute.
  • At higher opacity values, the background becomes harder to see.
Učební příklady
  • Set the opacity to 50%.
  • This layer has 80% opacity.
Podstatné jméno formal C1 abstract
3

lack of clarity or openness

Opacity can mean that something is hard to understand because it is not clear or open.

Vzorec užití: the opacity of [process/system/statement]
Častá chyba:
Learners may overuse opacity when ‘unclear’ or ‘confusing’ would be more natural in casual speech.
Synonyma
obscurity (Emphasizes being hard to understand, sometimes due to complexity.) | lack of transparency (Focuses on not being open or accountable.) | murkiness (More informal; suggests confusion or suspicion.)
Antonyma
transparency (Openness and clarity about what is happening.) | clarity (Ease of understanding and seeing what is meant.)
Kolokace
bureaucratic opacity |corporate opacity |government opacity |opacity of the process |opacity of the rules |opacity in decision-making |regulatory opacity |legal opacity |financial opacity |deliberate opacity
Témata
communication |business |government
Příklady
  • Employees complained about the opacity of the promotion process.
  • The report criticized the opacity of the company’s finances.
  • The policy’s opacity made it hard for customers to know what they were agreeing to.
Učební příklady
  • The rules have too much opacity.
  • We want more transparency and less opacity.
Podstatné jméno technical C2 entity
4

whiteness in medical imaging

In medicine, an opacity is a whiter area on a scan.

Vzorec užití: an opacity in [body part/scan]
Synonyma
shadow (Common non-technical term used by patients; less precise.)
Antonyma
clear area (Not a standard technical antonym, but the opposite finding on imaging.)
Kolokace
pulmonary opacity |lung opacity |focal opacity |diffuse opacity |ground-glass opacity |an opacity on the X-ray |an opacity in the left lung |new opacity |resolving opacity |persistent opacity
Témata
health |medicine
Příklady
  • The radiologist noted a small opacity in the right upper lobe.
  • Follow-up imaging showed that the opacity had resolved.
  • A new opacity on the chest X-ray prompted further tests.
Gramatika
Slovníkový tvar
opacity
IPA
GB/oʊpˈæsəti/
US/oʊpˈæsəti/
Slabiky a přízvuk
opa - city (2 slabiky)
Stress on 2nd syllable (city)
Tvary slova
Noun
  • Base: opacity
  • Plural: opacities, opacity
Příbuzná slova
Forms
opacities noun
Core family
opaque adjective B2
Related words
opaquely adverb opaqueness noun
Negative and opposite forms
transparent adjective B2 transparency noun C1
Advanced or less common
opacify verb opacification noun
Výrazy

ground-glass opacity

1
/ɡɹˈaʊnd ɡlˈæs oʊpˈæsəti/
fixed phrase technical

hazy area on lung scan

A ground-glass opacity is a hazy area on a lung scan.

Příklady
  • The CT report mentioned ground-glass opacity in both lungs.
  • Ground-glass opacity can have several possible causes.
  • Repeat imaging showed less ground-glass opacity than before.

opacity level

1
/oʊpˈæsəti lˈɛvəl/
fixed phrase technical

amount of opacity

An opacity level is a chosen amount of opacity.

Příklady
  • Lower the opacity level so the text behind it is visible.
  • The default opacity level is 100%.
  • Try a 30% opacity level for a subtle watermark.

opacity setting

1
/oʊpˈæsəti sˈɛtɪŋ/
fixed phrase technical

control for opacity in software

The opacity setting is where you change transparency.

Příklady
  • Change the opacity setting for the top layer.
  • If the highlight is too strong, reduce the opacity setting.
  • The app remembers your last opacity setting.

opacity slider

1
/oʊpˈæsəti slˈaɪdɚ/
fixed phrase technical

UI slider for transparency

An opacity slider is a bar you drag to change opacity.

Příklady
  • Drag the opacity slider to the left to make it more transparent.
  • The opacity slider is in the Layers panel.
  • I can’t find the opacity slider on mobile.

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