navigational instrument for finding directions | the act of distinguishing by comparing differences |
drafting instrument used for drawing circles | the range of optical density and tone on a photographic negative or print (or the extent to which adjacent areas on a television screen differ in brightness) |
an area in which something acts or operates or has power or control: | the perceptual effect of the juxtaposition of very different colors |
the limit of capability | a conceptual separation or distinction |
| the opposition or dissimilarity of things that are compared |