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rainproof

[reyn-proof] /ˈreɪnˌpruf/
adjective
1.
impervious to rain; keeping out or unaffected by rain:
a rainproof cover; a rainproof coat.
verb (used with object)
2.
to make rainproof.
Origin
1825-1835
1825-35; rain + -proof
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for rainproof
  • rainproof and insect proof inside, and providing good insulation from the heat and the cold.
  • The cabinet shall be rainproof with the top of the enclosure crowned to prevent standing water.
  • If exposed to rain, they must be listed as rainproof.
  • The disconnect switch must be mounted in the upright position and shall be rainproof if exposed to weather.
  • Install a rainproof bulletin board for announcing garden events and messages to keep members up to date and recruit new gardeners.
  • If the instrument is wet this position will allow the water to run away from the areas that are not rainproof.
  • rainproof caps shall be furnished for tubular posts.
  • Designed to be rainproof, they are ventilated using a thermostatically controlled fan.
  • The housing shall be rainproof with the top of the enclosure crowned to prevent standing water.
  • Unit shall have a factory-built and wired electrical control panel in rainproof enclosure.
British Dictionary definitions for rainproof

rainproof

/ˈreɪnˌpruːf/
adjective
1.
Also raintight. (of garments, materials, buildings, etc) impermeable to rainwater
verb
2.
(transitive) to make rainproof
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 rainproof
adj.

also rain-proof, 1788, from rain (n.) + proof (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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Word Value for rainproof

14
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