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waterproof

[waw-ter-proof, wot-er-] /ˈwɔ tərˌpruf, ˈwɒt ər-/
adjective
1.
impervious to water.
2.
rendered impervious to water by some special process, as coating or treating with rubber:
a waterproof hat.
noun
3.
Chiefly British. a raincoat or other outer coat impervious to water.
4.
any of several coated or rubberized fabrics that are impervious to water.
verb (used with object)
5.
to make waterproof.
Origin
1730-1740
1730-40; water + -proof
Related forms
waterproofer, noun
waterproofness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for water-proofed

waterproof

/ˈwɔːtəˌpruːf/
adjective
1.
not penetrable by water Compare water-repellent, water-resistant
noun
2.
(mainly Brit) a waterproof garment, esp a raincoat
verb (transitive)
3.
to make (a fabric, item of clothing, etc) waterproof
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for water-proofed

waterproof

adj.

1725, from water (n.1) + proof. The verb is first recorded 1843. Related: Waterproofed; waterproofing.

Online Etymology Dictionary, © 2010 Douglas Harper
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8
8
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