Definition of opacity
2 : the quality or state of a body that makes it impervious to the rays of light; broadly : the relative capacity of matter to obstruct the transmission of radiant energy
3 : an opaque spot in a normally transparent structure (such as the lens of the eye)
Examples of opacity in a Sentence
the opacity of the glass
Critics have noted the opacity of her writing style.
Recent Examples of opacity from the Web
It's marred by a disturbing splodge of olive-oil jam with a thickness, viscosity, and opacity shared by certain bodily fluids.
One coat does the trick with these polishes, but two gives you even more opacity.
For this small arrangement, Sato purposely placed flowers in a ceramic vase for its shallow bowl and opacity, mainly to hide the kenzan, a metal disk, usually with many nails facing upwards that can be used to support the flower stems.
But since then, rising ideological and partisan conflict has pushed congressional leaders back toward opacity.
With its intentional opacity, the show invites additional interpretations.
The opacity of the central woman’s identity, though, feels obfuscatory rather than interestingly mysterious, and much of the male-female partnering is dominated by upside-down swirling lifts that are at first breathtaking, later oddly routine.
The problem lies in inequality itself, and the opacity surrounding the giving process.
The O’Reilly crisis ignited a groundswell of transparency among employees, many of whom had operated for years under Ailes’s Nixonian culture of opacity.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'opacity'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of opacity
Middle French opacité shadiness, from Latin opacitat-, opacitas, from opacus shaded, dark
First Known Use: 1575See Words from the same year
OPACITY Defined for English Language Learners
Definition of opacity for English Language Learners
: the quality of a material that does not allow light to pass through it : the quality of being opaque
: the quality of being difficult to understand or explain
Medical Definition of opacity
1: the quality or state of a body that makes it impervious to the rays of light; broadly : the relative capacity of matter to obstruct by absorption or reflection the transmission of radiant energy (as X-rays, infrared radiation, or sound)
2: an opaque spot in a normally transparent structure (as the lens of the eye)
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