Roofing Terms & Definitions. Asphalt: A bituminous waterproofing agent applied to roofing materials during manufacturing. Back Surfacing: Fine mineral matter applied to the backside of shingles to keep them from. sticking. Blisters: Bubbles that may appear on the surface of asphalt roofing after installation.
Symbol(noun) an abbreviation standing for the name of an element and consisting of the initial letter of the Latin or New Latin name, or sometimes of the initial letter with a following one; as, C for carbon, Na for sodium (Natrium), Fe for iron (Ferrum), Sn for tin (Stannum), Sb for antimony (Stibium), etc.
symbol. (noun) Anything that represents something else. Example: @ means at, $ means United States dollar, % means percentage, Â© means copyright, Â® means registered, â¬ means euro, Â¥ means yen, and â means infinity. Audio Pronunciation: (symÂ·bol). Download Audio Pronunciation: symbol.mp3. Usage Notes: 1  Plural: symbols. 2  Also called symbolic representation. 3  Types: status symbol.