1. A situation or surrounding substance within which something is created, originates, is formed or contained. 2. A mold in which matter is cast in relief, such as type. 3. A place within which something is developed or formed. 4. Any natural material in which fossils, crystals, metals, etc. can be found. 5. An arrangement of elements in a circuit that perform specific functions. (Gods In Disguise Book, foreword)
See also: Matrix creations