junk food

noun
1.
food, as potato chips or candy, that is high in calories but of little nutritional value.
2.
anything that is attractive and diverting but of negligible substance: the junk food offered by daytime television.

Origin:
1970–75, Americanism

junk-food, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
junk food
 
n
food that is low in nutritional value, often highly processed or ready-prepared, and eaten instead of or in addition to well-balanced meals

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Junk food is always a great word to know.
So is doohickey. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a gadget; dingus; thingumbob.
American Heritage
Medical Dictionary

junk food n.
Any of various prepackaged snack foods high in calories but low in nutritional value.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang Dictionary

junk food definition


  1. n.
    food that is typically high in fats and salt and low in nutritional value; food from a fast-food restaurant. : Junk food tastes good no matter how greasy it is.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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American Heritage
Idioms & Phrases

junk food

Prepackaged snack food that is high in calories but low in nutritional value; also, anything attractive but negligible in value. For example, Nell loves potato chips and other junk food, or When I'm sick in bed I often resort to TV soap operas and similar junk food. [c. 1970]

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
Eat fruits and vegetables and don't eat too much junk food it is and enjoy what
  you are eating.
And there was growing concern about obesity and junk food.
Discover the tips and tricks for buying cheap while avoiding a junk food-only
  diet.
Especially consider that we're practically the only species that smokes
  cigarettes and eats junk food.
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