spectroscopy

noun

spec·​tros·​co·​py spek-ˈträ-skə-pē 

1

: the process or technique of using a spectroscope or spectrometer

2

: the production and investigation of spectra

Examples of spectroscopy in a Sentence

Recent Examples on the Web

More modern analytical methods (such as two-dimensional gas chromatography and Raman spectroscopy) are now being used to profile and differentiate dragon’s blood resins from different species. —Scott Travers, Forbes.com, 21 Jan. 2026

Ultrafast optical spectroscopy confirms exceptionally weak electron–phonon coupling and validates first-principles calculations. —Prabhat Ranjan Mishra, Interesting Engineering, 21 Jan. 2026

Astronomers plan to peer at Sextans A again with JWST to search out more PAHs, using high-resolution spectroscopy. —Elizabeth Howell, Space.com, 14 Jan. 2026

Instead of blood tests, the scale utilizes something called bioimpedance spectroscopy (BIS) and foot sweat. —Victoria Song, The Verge, 5 Jan. 2026

Word History

First Known Use

1869, in the meaning defined at sense 1

Phrases Containing spectroscopy

• Auger electron spectroscopy

Rhymes for spectroscopy

• arthroscopy
• colposcopy
• cystoscopy
• fluoroscopy
• colonoscopy
• laparoscopy

Medical Definition

spectroscopy

noun

spec·​tros·​co·​py spek-ˈträs-kə-pē 

plural spectroscopies

1

a

: the production and investigation of spectra

b

: the process or technique of using a spectroscope or spectrometer

2

: physics that deals with the theory and interpretation of interactions between matter and radiation (as electromagnetic radiation)