Definitions for "Bleeding Edge"
When a page or a cover design extends to and off the edge of the paper it is called a "bleed". In print design, the artwork or block of color must extend off the edge of the page. The artwork or block of color is then printed on larger-size paper. Then the printed page is trimmed to the desired size.
Technology or hardware that is new and as yet unproved, often to the point of being marginally reliable and difficult to operate and maintain.
Technology in its first phase of development.