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pro·tein
 protein
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- pronunciation:
- pro
tin
- features:
- Word Explorer, Word Parts
| part of speech: |
noun |
| definition: |
When we talk about protein in food, we are talking about a certain kind of substance that our bodies need in order to grow and to stay strong and alive. Foods from animals have more of this substance than foods from plants, but plants have protein too. Protein is made up of certain chemicals, and there are actually different kinds of proteins. Proteins are found in all living things.
Eggs, meat, and beans are good sources of protein. |
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| derivation: |
proteinaceous (adj.) |
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