A spectroscopist is a scientist who studies substance characteristics through analyzing spectra. Common synonyms for a spectroscopist include a spectrometrist, spectral analyst, or spectroscopic analyst. Depending on the focus of their work, they may also be called a laser spectroscopist, X-ray spectroscopist, or optical spectroscopist. Often working in labs or research facilities, spectroscopists use specialized equipment and techniques to examine the properties of various substances, such as the light they absorb or emit. They play a crucial role in fields such as astronomy, chemistry, and physics, helping to uncover new information about the composition and behavior of the natural world.