|a double sulfate analogous to potassium alum, as aluminum ammonium sulfate, with the formula R2SO4?X2(SO4)3?24H2O, where R is alkali metal or ammonium|
|a colorless, toxic, water-soluble gas having a suffocating odor, used chiefly as a disinfectant and preservative, contained in resins and plastics|
|1.||stereoisomerism See also optical isomerism the existence of two or more compounds having the same molecular formula but a different arrangement of atoms within the molecule|
|2.||the existence of two or more nuclides having the same atomic numbers and mass numbers but different energy states|
isomerism i·som·er·ism (ī-sŏm'ə-rĭz'əm)
The phenomenon of the existence of isomers.
The complex of chemical and physical phenomena characteristic of or attributable to isomers.
The state or condition of being an isomer.