Pur, n. The low, murmuring sound made by a cat to express contentment or pleasure. [Written also purr.]
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  Pur v. i. [imp. & p. p. Purred p. pr. & vb. n. Purring.]  To utter a low, murmuring, continued sound, as a cat does when pleased. [Written also purr.]
  Pur, v. t. To signify or express by purring.