'Purr' definitions:

Definition of 'purr'

noun

A low vibrating sound typical of a contented cat

verb

Make a soft swishing sound; "the motor whirred"; "the car engine purred" [syn: whizz, whiz, whirr, whir, birr, purr]

verb

Indicate pleasure by purring; characteristic of cats [syn: purr, make vibrant sounds]

From: GCIDE

From: GCIDE

Purr \Purr\, n. The low murmuring sound made by a cat; pur. See Pur. [1913 Webster]

From: GCIDE

Pur \Pur\, v. i. [imp. & p. p. Purred; p. pr. & vb. n. Purring.] [Of imitative origin; cf. Prov. G. purren.] To utter a low, murmuring, continued sound, as a cat does when pleased. [Written also purr.] [1913 Webster]

From: GCIDE

Pur \Pur\, n. The low, murmuring sound made by a cat to express contentment or pleasure. [Written also purr.] [1913 Webster]