Material is the matter an object is made of. There are four categories of material: ceramic, composite, metal and polymer.
- Ceramic - inorganic non-metallic solid comprised of either metal or non-metal compounds made by heating together these materials.
- Composite - material mixture of two or more materials with different properties combined to produce a new material.
- Metal - chemical elements that are good conductors of heat and electricity.
- Polymer - a long chain of molecules linked together.
- MATL - material
- ML - material list