What does r mean?

Definitions for r


Princeton's WordNet

  1. roentgen, R(noun)


  2. gas constant, universal gas constant, R(noun)


  3. R, r(noun)

    the 18th letter of the Roman alphabet

  4. radius, r(noun)


Webster Dictionary

  1. R

    r, the eighteenth letter of the English alphabet, is a vocal consonant. It is sometimes called a semivowel, and a liquid. See Guide to Pronunciation, // 178, 179, and 250-254


  1. R

    R is the eighteenth letter of the ISO basic Latin alphabet.

The Standard Electrical Dictionary

  1. R

    (a) Abbreviation and symbol for Reamur, as 10º R., meaning 10º by the Reamur thermometer. (See Reamur Scale.) (b) Symbol for resistance, as in the expression of Ohm's Law C=E. (rho, Greek r) Symbol for specific resistance.


  1. Chaldean Numerology

    The numerical value of r in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of r in Pythagorean Numerology is: 9

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Translations for r

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