iodin
/ˈaɪədɪn/
noun
- A nonstandard spelling of 'iodine', a chemical element used as a disinfectant and essential for thyroid health.
- The label on the bottle said 'tincture of iodin' as an old-fashioned spelling.
- Some older chemistry textbooks still use the spelling 'iodin'.
- The pharmacist noted that 'iodin' is an alternate but less common spelling of iodine.