the range of wavelengths of electromagnetic radiation that is normally visible, from 380 to 760 nm.
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Science Terms That We All Pretend To Know
In the spirit of scientific community and understanding, let's clear up some misconceptions around a few of the most misunderstood scientific terms. Let’s boldly go where no man has gone before.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The part of the electromagnetic spectrum visible to the human eye, extending from extreme red, 760.6 nanometers, to extreme violet, 393.4 nanometers.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.