spectrophotometry
/ˌspɛk.trəʊˌfəʊ.təˈmɛ.tri/ IELTSAcademic
noun
the scientific measurement of how much light a substance absorbs or transmits at different wavelengths. It is used in labs to identify or compare materials.
- The lab used spectrophotometry to test the sample.
- Spectrophotometry showed a change in the solution.
- They measured the dye by spectrophotometry.
Adinary Nuance
Spectrophotometry is more specific than general measurement words like analysis or testing. It names a lab method, not just the result. Use it when you want to show that light measurements are part of the process. In scientific writing, it sounds precise and technical, not everyday.
In other languages
- Vietnamese
- quang phổ kế
- Spanish
- espectrofotometría
- Chinese
- 分光光度法
- Japanese
- 分光光度法
- Korean
- 분광광도법
Etymology
From Greek and Latin roots: spectrum, photo- “light,” and -metry “measuring.” The word entered scientific English in the 20th century with modern lab methods.
Common phrases
spectrophotometry testby spectrophotometryuse spectrophotometry
Synonyms
Related words
Frequently asked questions
- Is spectrophotometry a common word in English?
- No, it is mainly used in science, medicine, and lab work.
- How do I use spectrophotometry in a sentence?
- Use it as a noun: “We used spectrophotometry to measure the sample.”
- Is spectrophotometry the same as spectrometry?
- Not exactly. Spectrophotometry focuses on light absorption or transmission.
- Is spectrophotometry formal?
- Yes. It is a technical word for academic and professional writing.