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apple a day

A small preventive treatment wards off serious problems, as in He exercises regularly—an apple a day is his motto. This idiom shortens the proverb An apple a day keeps the doctor away, first cited about 1630.

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Nearby words

  1. applanometry,
  2. applaud,
  3. applaudable,
  4. applause,
  5. apple,
  6. apple bee,
  7. apple blight,
  8. apple blossom,
  9. apple box,
  10. apple brandy
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.