invisible spectrum

[ in-viz-uh-buhl spek-truhm ]

  1. the range of wavelengths of electromagnetic radiation that lie on either side of the visible spectrum and which consists of infrared and ultraviolet light.

Origin of invisible spectrum

First recorded in 1865–70

Words Nearby invisible spectrum Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023