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Th or TH may refer to:


Science and technology[edit]

Biology and medicine[edit]

Units of measurement[edit]

  • Thomson (unit) (Th) in mass spectrometry
  • Thermie (th), metric unit of heat energy equal to 1,000 kilocalories

Other uses in science and technology[edit]

  • .th, the Internet country code top-level domain for Thailand
  • Thorium (chemical symbol Th), a chemical element
  • <th>...</th>, HTML element for table header cell
  • Hold time (th) of a flip flop in electronics

Other uses[edit]