A dyke (or dike) in geology is a type of later vertical rock between older layers of rock. Technically, it is any geologic body which cuts across:1  flat wall rock structures, such as bedding. dyke (or dike) in geology is a type of later vertical rock between older layers of rock. Technically, it is any geologic body which cuts across: 1  flat wall rock structures, such as bedding.
Another example would be the âdefault browserâ on your computer. Windows PCs come with Internet Explorer (the blue âEâ icon) as the default browser, just as Apple includes their own Safari browser as the default on their Mac computers.
A browser is a program that lets you surf the Internet, like Windows Internet Explorer , Mozilla Firefox , or Google Chrome . If a computer has more than one browser, you have to designate one of them as the default (preferred) browser. The one that you use the most is a good choice. Boulder Computer Maven.