rainout

or rain-out

[ reyn-out ]
/ ˈreɪnˌaʊt /
|

noun

a contest, performance, or the like, that has been rained out.
Also called washout. the removal of radioactive particles or other foreign substances from the atmosphere by precipitation.
Compare fallout.

Origin of rainout

1945–50, Americanism; noun use of verb phrase rain out

Definition for rain-out (2 of 2)

Origin of rain

before 900; (noun) Middle English rein; Old English regn, rēn, cognate with Dutch, German regen, Old Norse regn, Gothic rign; (v.) Middle English reinen, Old English regnian

SYNONYMS FOR rain

Related forms

rain·less, adjectiverain·less·ness, noun

Can be confused

rain reign rein
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for rain-out (1 of 2)

rain

/ (reɪn) /

noun


verb

US and Canadian term: rained out
See also rains

Derived Forms

rainless, adjective

Word Origin for rain

Old English regn; related to Old Frisian rein, Old High German regan, Gothic rign

British Dictionary definitions for rain-out (2 of 2)

rainout

/ (ˈreɪnˌaʊt) /

noun

radioactive fallout or atmospheric pollution carried to the earth by rain

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

Science definitions for rain-out

rain

[ rān ]

Water that condenses from water vapor in the atmosphere and falls to Earth as separate drops from clouds. Rain forms primarily in three ways: at weather fronts, when the water vapor in the warmer mass of air cools and condenses; along mountain ranges, when a warm mass of air is forced to rise over a mountain and its water vapor cools and condenses; and by convection in hot climates, when the water vapor in suddenly rising masses of warm air cools and condenses. See also hydrologic cycle.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with rain-out

rain

In addition to the idioms beginning with rain

  • rain cats and dogs
  • rain check
  • rain on one's parade
  • rain or shine
  • rain out
  • rainy day, a

also see:

  • come in out of the rain
  • it never rains but it pours
  • right as rain

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.