spectroscopical
/ˌspɛktrəˈskɑpɪkəl/
adjective
- Relating to spectroscopy or a spectroscope (less common variant of 'spectroscopic').
- The spectroscopical data from the experiment were carefully recorded.
- The technician performed a spectroscopical examination of the mineral sample.
- He published a paper on the spectroscopical properties of distant galaxies.