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Glossary of Physics Terms
beginning with letter U
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ultrasonics Tweet Definition of ultrasonics Like Definition of ultrasonics on Facebook
noun
  1. the science and technology of ultrasound
ultrasound Tweet Definition of ultrasound Like Definition of ultrasound on Facebook
noun
  1. sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz
  2. (medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes
ultraviolet Tweet Definition of ultraviolet Like Definition of ultraviolet on Facebook
adjective (pos=ultra-, ultraviolet)
  1. of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 nanometre - 10 nanometre
updraft Tweet Definition of updraft Like Definition of updraft on Facebook
noun
  1. an upward current of air, especially a strong one
up quark Tweet Definition of up quark Like Definition of up quark on Facebook
noun
  1. (particles) A quark having a fractional electric charge of +2/3 and a mass of about 1.5 to 4 MeV?. Symbol: u
upsilon Tweet Definition of upsilon Like Definition of upsilon on Facebook
noun
  1. The twentieth letter of the Classical Greek, Classical and Modern Greek, the twenty-first letter of Old Greek, Old and Ancient Greek, Ancient.
  • Letter of the Greek alphabet: '''Υ υ
    Previous: tau, Τ
    Next: phi, Φ
USW Tweet Definition of USW Like Definition of USW on Facebook
initialism
  1. United Steelworkers
UV Tweet Definition of UV Like Definition of UV on Facebook
initialism
  1. ultraviolet

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