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Polyurethane vs Pur - What's the difference?

polyurethane | pur | initialism |

Polyurethane is a initialism of pur.


As a noun polyurethane

is polyurethane (any of various polymeric resins containing urethane links).

As an adjective pur is

pure.

polyurethane

English

(wikipedia polyurethane)

Noun

(en noun)
  • (organic chemistry) Any of various polymeric resins containing urethane links; used in very many industrial and domestic applications.

    • pur

    English

    Noun

    (en noun)
  • (low murmuring sound as of a cat)
  • * 1895 , Jacob Mendes Da Costa, Medical diagnosis (page 294)
    • The first — called by Laennec, from its resemblance to the pur of a cat, the purring tremor — is nearly always indicative of a valvular lesion. The second is caused by the to-and-fro motion of a roughened pericardium.

    Verb

  • * John G. C. Brainard
    • And there the wild-cat purs amid her brood.
  • * 1840 , The Visitor: Or, Monthly Instructor (page 182)
    • It appears to me, past all doubt, that its [the goatsucker's] notes are formed by organic impulse, by the parts of its windpipe formed for sound, just as cats pur .
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