Opacity Definition

Opacity Sentence Examples

• Tyndall's investigations of the transparency and opacity of gases and vapours for radiant heat, which occupied him during many years (1859-1871), are frequently considered his chief scientific work.

• Closely associated with the effect of continental immobility are the effects dependent on the low specific heat and the opacity of the lands, in contrast with the high specific heat and partial transparence of the ocean waters.

• He examined the opacity of the air for sound in connexion with lighthouse and siren work, and he finally clinched the proof of what had been already substantially demonstrated by several others, viz.

• If this cannot be achieved, examine the eye again in case there is another cause for decreased acuity such as early lens opacity.

• The areas of the sky which contain heavy obscuration usually exhibit clouds of several degrees of opacity.