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mash1

[mash]
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verb (used with object)
  1. to crush: He mashed his thumb with a hammer.
  2. to reduce to a soft, pulpy mass, as by beating or pressure, especially in the preparation of food.
  3. to mix (crushed malt or meal of grain) with hot water to form wort.
noun
  1. a soft, pulpy mass.
  2. a pulpy condition.
  3. a mixture of boiled grain, bran, meal, etc., fed warm to horses and cattle.
  4. crushed malt or meal of grain mixed with hot water to form wort.
  5. British Slang. mashed potatoes.

Origin of mash1

before 1000; Middle English; Old English mǣsc-, masc- (in compounds); cognate with German Maische

mash2

[mash]Older Slang.
noun
  1. a flirtation or infatuation.
  2. a flirt; sweetheart; lover.
verb (used with object)
  1. to flirt with; court the affections of.

Origin of mash2

1880–85; orig. theatrical argot; of uncertain origin

MASH

[mash]
noun
  1. mobile army surgical hospital.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for mash

mash

noun
  1. a soft pulpy mass or consistency
  2. agriculture a feed of bran, meal, or malt mixed with water and fed to horses, cattle, or poultry
  3. (esp in brewing) a mixture of mashed malt grains and hot water, from which malt is extracted
  4. British informal mashed potatoes
  5. Northern English dialect a brew of tea
verb (tr)
  1. to beat or crush into a mash
  2. to steep (malt grains) in hot water in order to extract malt, esp for making malt liquors
  3. Northern English dialect to brew (tea)
  4. archaic to flirt with
Derived Formsmashed, adjectivemasher, noun

Word Origin

Old English mǣsc- (in compound words); related to Middle Low German mēsch

MASH

n acronym for (in the US)
  1. Mobile Army Surgical Hospital
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

Word Origin and History for mash

n.

"soft mixture," late Old English *masc (in masc-wyrt "mash-wort, infused malt"), from Proto-Germanic *maisk- (cf. Swedish mäsk "grains for pigs," German Maisch "crushed grapes, infused malt," Old English meox "dung, filth"), from PIE *meik- "to mix" (see mix (v.)). Originally a word in brewing; general sense of "anything reduced to a soft pulpy consistency" is recorded from 1590s, as is the figurative sense "confused mixture, muddle." Short for mashed potatoes it is attested from 1904.

v.

Old English mæscan, "to mix with hot water," from same root as mash (n.). Meaning "to beat into a soft mass" is mid-13c. Related: Mashed; mashing. For romantic sense, see masher.

Online Etymology Dictionary, © 2010 Douglas Harper

mash in Medicine

MASH

abbr.
  1. Mobile Army Surgical Hospital
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.