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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

A substance found in all living things and in such foods as cheese, meat, eggs, and beans, and which the body needs in order to grow and remain strong and healthy.

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Usage examples (36)
  • Grain crops, or cereals, are by far the most important sources of plant food for the human race. On a world wide basis, they provide two-thirds of the energy and half the...
  • A diet high in protein
  • A faulty beta-globin protein is made, leading to severe anemia.
  • Under the term protein are included the principal nitrogenous compounds which make bone, muscle and other material.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.