IPA: /ˈspɛktrəli/
KK: /ˈspɛktrəli/
In a way that relates to or resembles a spectrum, often used in contexts involving light or sound waves.
The colors of the rainbow can be described spectrally, showing a range of wavelengths.
Spectrally → It is formed from "spectrum" (from Latin *spectrum*, meaning appearance or image) and the suffix "-ally" (meaning in a manner relating to). The word "spectrally" refers to something that relates to or is characteristic of a spectrum, often in the context of light or sound.
Think of 'spectrum' as an 'appearance' or 'image' and remember that 'spectrally' means in a manner relating to that appearance.