opacity
gb/oʊpˈæsəti/ us/oʊpˈæsəti/
C1
英语
义项
0 个义项
名词
C1
property
1
lack of transparency to light
Opacity is how much something blocks light.
用法模式：
the opacity of [material/object]
常见错误：
Learners sometimes confuse opacity (blocks light) with transparency (lets light through).
近义词
opaqueness (More direct and less formal; same meaning.)
|
cloudiness (Often suggests a liquid that is not clear, not any solid object.)
反义词
transparency (The quality of letting light pass through clearly.)
|
clarity (Often used for liquids or images being easy to see through.)
搭配
high opacity
|low opacity
|the opacity of glass
|the opacity of water
|reduce opacity
|increase opacity
|light opacity
|optical opacity
|surface opacity
|measure opacity
主题
materials
|science
|daily_life
例句
- 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.
学习者例句
- This glass has high opacity.
- The water has low opacity today.
名词
technical
C1
quantity
2
degree of being opaque
Opacity can also mean a level, like a number or percent.
用法模式：
an opacity of [number/percentage]
常见错误：
Don’t use *an opacity* to mean simply ‘something is opaque’ unless you are talking about a measurable level.
近义词
density (In everyday talk it can overlap, but density is not the same physical measure.)
反义词
transparency (Can also be measured as a level in similar contexts.)
搭配
opacity value
|opacity level
|opacity reading
|opacity measurement
|set the opacity
|adjust the opacity
|opacity percentage
|opacity scale
|opacity threshold
|peak opacity
主题
science
|measurement
|materials
例句
- 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.
学习者例句
- Set the opacity to 50%.
- This layer has 80% opacity.
名词
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.
用法模式：
the opacity of [process/system/statement]
常见错误：
Learners may overuse opacity when ‘unclear’ or ‘confusing’ would be more natural in casual speech.
近义词
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.)
反义词
transparency (Openness and clarity about what is happening.)
|
clarity (Ease of understanding and seeing what is meant.)
搭配
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
主题
communication
|business
|government
例句
- 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.
学习者例句
- The rules have too much opacity.
- We want more transparency and less opacity.
名词
technical
C2
entity
4
whiteness in medical imaging
In medicine, an opacity is a whiter area on a scan.
用法模式：
an opacity in [body part/scan]
近义词
shadow (Common non-technical term used by patients; less precise.)
反义词
clear area (Not a standard technical antonym, but the opposite finding on imaging.)
搭配
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
主题
health
|medicine
例句
- 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.
语法
词典原形
opacity
IPA
GB/oʊpˈæsəti/
US/oʊpˈæsəti/
音节与重音
opa - city （2 个音节）
Stress on 2nd syllable (city)
词形变化
Noun
- Base: opacity
- Plural: opacities, opacity
词族
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
相关表达
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.
例句
- 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.
例句
- 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.
例句
- 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.
例句
- 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.