T-ray
noun ·Rare ·Advanced level
Definitions
- 1 An electromagnetic wave with a frequency intermediate between, and sharing the properties of, short radio waves and long infrared waves, generally in the 0.1 to 10 terahertz (THz) band of frequencies. also, attributive, in-plural
"This terahertz "T-ray" technology combines imaging, real-time acquisition of terahertz waveforms and advanced signal processing techniques to obtain far-infrared images of objects and materials. In many cases, T-Ray^([sic]) images can also distinguish chemical compositions of the object. These features of T-ray imaging have generated interest in commercial applications in diverse areas as moisture analysis, quality control of plastic parts, packaging inspection, and trace gas analysis and monitoring."
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More examples"This terahertz "T-ray" technology combines imaging, real-time acquisition of terahertz waveforms and advanced signal processing techniques to obtain far-infrared images of objects and materials. In many cases, T-Ray^([sic]) images can also distinguish chemical compositions of the object. These features of T-ray imaging have generated interest in commercial applications in diverse areas as moisture analysis, quality control of plastic parts, packaging inspection, and trace gas analysis and monitoring."
Etymology
Initialism of t(erahertz) + ray, modelled after X-ray. The term was coined in Bell Labs in the United States in the mid-1990s.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.