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T-ray noun

  /ˈtiˌɹeɪ/ , /ˈtiːˌɹeɪ/
  • (electrical engineering, electromagnetism, also, attributive, chiefly, in the plural) 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. [from mid 1990s]
 raig T
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