Definition of


  1. (noun, communication) the 7th letter of the Roman alphabet
  2. (noun, quantity) (physics) the universal constant relating force to mass and distance in Newton's law of gravitation
  3. (noun, quantity) a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
  4. (noun, quantity) a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes
  5. (noun, quantity) a unit of force equal to the force exerted by gravity; used to indicate the force to which a body is subjected when it is accelerated
  6. (noun, quantity) a metric unit of weight equal to one thousandth of a kilogram
  7. (noun, quantity) the cardinal number that is the product of 10 and 100
  8. (noun, substance) one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
  9. (noun, substance) a purine base found in DNA and RNA; pairs with cytosine

via WordNet, Princeton University

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