Medical Definition of visible spectrum
: the part of the electromagnetic spectrum to which the human eye is sensitive extending from a wavelength of about 400 nm for violet light to about 700 nm for red light
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“Visible spectrum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/visible%20spectrum. Accessed 29 Jun. 2022.
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