The term NA OR CL- is a combination of three words: 'Na' (sodium), 'Or' (gold) and 'Cl' (chlorine). Sodium and chlorine are two elements found in the periodic table, while gold is a precious metal. The crossword solution for this term is 'ION', which stands for an ionic compound. An ionic compound is a type of chemical compound that is formed when positively charged ions and negatively charged ions come together to form a neutral molecule.