optical spectrum
optical spectrum · optical spectrums · optical spectra
The colours of the rainbowThe colours of the rainbow.
Meaning
3 sensesThe colours of the rainbow.
The distribution of colours produced when white light passes through a prism.
The range of frequencies of visible light.
Forms
plural: optical spectrums / optical spectra| Singular | optical spectrum |
|---|---|
| Plural | optical spectrums / optical spectra |
regular
Lessons for this word
1 lessons- A1Plural nouns — Because its plural is irregular