amorphousNon-crystalline; having no definite shape or form. The atoms or molecules of an amorphous substance have no regular order. Supercooled liquids such as glass, rubber, and some plastics are amorphous. Many powders appear amorphous but are in fact microcrystalline in structure. Related category• PHYSICAL CHEMISTRYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |