terahertz radiation(redirected from T ray)
Electromagnetic radiation with waves of frequencies ranging from 0.3 × 1012 to 3 × 1012 hertz and of wavelengths ranging from 0.1 to 1 millimeter of potential use in detection, imaging, and communications technologies. Also called submillimeter radiation.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.