Opacity definition

Opacity means the degree to which emissions reduce the transmission of light and obscure the view of an object in the background.

Opacity means the degree to which an object seen through a plume is obscured, stated as a percentage.

Opacity means that property of a substance tending to obscure vision and is measured as percent obscuration.

Examples of Opacity in a sentence

Opacity permeates Xxxx’x prints in a double sense: they are materially opaque, and prevent the observer from clearly seeing parts of the work, but also symbolically, the modern lack of knowledge on African spiritualties precludes them from understanding the scenes.

Opacity means the capacity to obstruct the transmission of light, expressed as percent.

Opacity means a state which renders material partially or wholly impervious to rays of light and causes obstruction of an observer's view.

Opacity means an optical measurement of the density of particulate matter in the exhaust flow of an engine, expressed in m-1;

Opacity means the degree to which emissions, excluding uncombined water, reduce the transmission of light and obscure the view of an object in the background as measured by EPA Method 9 or other method, as specified in each applicable rule.

Opacity means the percentage of light obstructed from passage through an exhaust smoke plume.

Opacity means a state which renders material partially or wholly impervious to rays of visible light and causes obstruction of an observer’s view.

Opacity means the fraction of a beam of light, expressed in percent, which fails to penetrate a plume of smoke.