string 1. (physics) A fundamental one-dimensional object that is the essential ingredient in string theory. Different states of string represent the different possible elementary particles. A string can be visualized as a path or a loop that propagates through a background space. PARTICLE PHYSICS 2. (math) Any sequence of letters, numbers, digits, bits, or symbols. MATHEMATICS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |