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Dictionary

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r

English

  1. 🔊 the 18th letter of the Roman alphabet
  2. 🔊 the length of a line segment between the center and circumference of a circle or sphere
  3. 🔊 the 18th letter of the Roman alphabet
  4. 🔊 a unit of radiation exposure
  5. 🔊 (physics) the universal constant in the gas equation: pressure times volume = R times temperature

This word in Spanish

  1. 🔊 r The nineteenth letter of the Spanish alphabet, written in the Latin script.
  2. 🔊 r The nineteenth letter of the Spanish alphabet, written in the Latin script.
  3. 🔊 r abbreviation of rey (“king”)

Similar words

radius r r gas constant universal gas constant roentgen