Wikipedia
Swiss cheese is a generic name in North America for several related varieties of cheese, mainly of North American manufacture, which resemble Emmental cheese, a yellow, medium-hard cheese that originated in the area around Emmental, in Switzerland. Some types of Swiss cheese have a distinctive appearance, as the blocks of the cheese are riddled with holes known as " eyes". Swiss cheese without eyes is known as "blind". (The term is applied to cheeses of this style made outside Switzerland, such as Jarlsberg cheese, which originates in Norway).
Swiss cheese, in American English, is a large family of holey cheeses.
Swiss cheese may also refer to:
In mathematics, a Swiss cheese is a compact subset of the complex plane obtained by removing from a closed disc some countable union of open discs. More generally, a Swiss cheese may be all or part of Euclidean space R – or of an even more complicated manifold – with "holes" in it.