Definition: The measure opaqueness or how much you can see through a graphic or a piece of paper is its opacity. The more fibers or fillers in a paper, the more opaque (less see-through) it will be. Thinner papers can be made more opaque with opacifying thickeners.
Graphics opacity is controlled in a graphics software program when layering images on top of each other. The more you can see through an image, the more transparent it is and the less opacity it has.
Also Known As: transparency
