monochromator: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “monochromator” mean?
An optical device that isolates a narrow band of wavelengths (a single colour) from a broader spectrum of light.
Audio
Pronunciation
Definition
Meaning and Definition
An optical device that isolates a narrow band of wavelengths (a single colour) from a broader spectrum of light.
A key component in spectroscopy and analytical instruments, used to select specific wavelengths for measurement, analysis, or illumination. In broader technical contexts, it can refer to any system designed to produce monochromatic light.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Potential minor spelling consistency in derivative terms (e.g., 'monochromatise' vs. 'monochromatize').
Connotations
Identical technical connotations. The word is devoid of cultural or regional nuance.
Frequency
Extremely low frequency in general discourse, identically high within relevant STEM fields in both regions.
Grammar
How to Use “monochromator” in a Sentence
The [spectrometer] incorporates a [high-resolution] monochromator.Monochromatic light is produced by [passing broadband light] through a monochromator.The [researcher] adjusted the monochromator to [a specific wavelength].Vocabulary
Collocations
Examples
Examples of “monochromator” in a Sentence
adjective
British English
- The monochromator unit was carefully aligned.
- We need a monochromator-based setup.
American English
- The monochromator assembly required calibration.
- It was a monochromator-intensive experiment.
Usage
Meaning in Context
Business
Virtually never used, except possibly in technical sales specifications for scientific equipment.
Academic
Core term in papers and textbooks on spectroscopy, optical engineering, analytical chemistry, and physics.
Everyday
Not used.
Technical
The primary register. Essential for describing the function of spectrometers, spectrophotometers, and other optical analysis tools.
Vocabulary
Synonyms of “monochromator”
Neutral
Weak
Vocabulary
Antonyms of “monochromator”
Watch out
Common Mistakes When Using “monochromator”
- Confusing it with a 'monochrome display' (which shows only shades of one colour, not selects a wavelength).
- Using 'monochromator' to refer to a person who paints in monochrome.
- Misspelling as 'monochromater'.
- Pronouncing it as /ˈmɒnəkrəˌmeɪtə/ (stress on the first syllable).
FAQ
Frequently Asked Questions
Not exactly. A prism can be a component *inside* a monochromator to disperse light, but a monochromator is a complete device that includes an entrance slit, a dispersive element (like a prism or grating), and an exit slit to select the wavelength.
Almost exclusively in scientific laboratories, inside instruments like spectrophotometers (used in chemistry/biochemistry labs), spectral radiometers, or advanced colour measurement systems. You would not find one in everyday electronics.
Within its operational range, yes. A monochromator is tuned to select a specific wavelength, which corresponds to a specific pure spectral colour (e.g., 650 nm is red, 530 nm is green). It cannot produce mixed colours like brown.
A monochromator uses dispersion and slits to achieve very high wavelength selectivity and purity, and it can be continuously tuned across a range. A filter (especially a simple colour filter) typically blocks a wider range of wavelengths less precisely and is fixed for a particular colour band.
An optical device that isolates a narrow band of wavelengths (a single colour) from a broader spectrum of light.
Monochromator is usually technical/scientific in register.
Monochromator: in British English it is pronounced /ˌmɒnə(ʊ)ˈkrəʊmeɪtə/, and in American English it is pronounced /ˌmɑːnəˈkroʊmeɪtər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a MONO (single) CHROMA (colour) -TOR (maker/device): a device that makes a single colour from many.
Conceptual Metaphor
A PRECISE SIEVE FOR LIGHT; A TUNED RADIO FOR COLOURS.
Practice
Quiz
What is the primary function of a monochromator?