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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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Examples for waterproof
  • Builders stabilized the tower and added flashing to make it waterproof.
  • The bags are waterproof and dustproof and you can pocket several on every flight when the cabin crew are not looking.
  • The scientists say it's similar to weaving waterproof fabric.
  • The slabs are designed to be retrofitted in place of existing flooring and, being waterproof, can be used inside or outdoors.
  • When he does he will take a waterproof video camera his roommate gave him.
  • His feet were poking outside the shack, under the waterproof wall.
  • It's invisible and waterproof because all of its circuitry--including its battery and microphone--is in the user's head.
  • Keep bone-dry and incredibly warm with this waterproof gear.
  • The solution turned out to be a waterproof glue made from cashew nuts and sugar.
  • Then the package is wrapped in a waterproof housing and readied for a ride on the back of a humpback.
British Dictionary definitions for waterproof

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 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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