Definition of staple diet noun from the Oxford Advanced American Dictionary

     

    staple diet

     noun
    noun
     
    [uncountable, countable]staple diet (of something)
     
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  1. 1the food that a person or an animal normally eats a staple diet of meat and potatoes Bamboo is the panda's staple diet.
  2. 2 something that is used a lot Sex and violence seem to be the staple diet of television drama.
See the Oxford Advanced Learner's Dictionary entry: staple diet