entity /enˈti-ti/

1. Being or existence
2. Something that exists independently
3. The basic essential nature of something
4. An abstraction or archetypal conception

• spectrological
• spectrologically
• spectrologies
• spectrology
• spectrometer
• spectrometers
• spectrometric
• spectrometries
• spectrometry
• spectrophotometer
• spectrophotometers
• spectrophotometry
• spectroscope
• spectroscopes
• spectroscopic
• spectroscopical
• spectroscopically
• spectroscopic binaries
• spectroscopic binary
• spectroscopies
• spectroscopist
• spectroscopists
• spectroscopy
• spectrum
• spectrum analyses