B2noun2K

Protein

UK /["/ˈprəʊtiːn/"]/US /["/ˈprəʊtiːn/"]/

Definition

a substance, found within all living things, that forms the structure of muscles, organs, etc. There are many different proteins and they are an essential part of what humans and animals eat to help them grow and stay healthy.

In simple words: A type of nutrient that helps build and repair the body.

Examples

  • essential proteins and vitamins
  • protein deficiency
  • Peas, beans and lentils are a good source of vegetable protein.
  • Gluten is a protein found in wheat and other grains.

Usage notes

Used in both everyday conversation and scientific contexts. Often discussed in relation to diet and health. Less common in casual speech unless related to fitness or nutrition.

Grammar pattern

standalone noun

Memory hint

Remember 'protein' by thinking of 'pro-tein' as a 'pro' helper for your muscles.

Collocations

  • essential
  • natural
  • animal
  • contain
  • supply
  • be high in
  • be found in something
  • content
  • level
  • intake
  • a source of protein

Synonyms

  • nutrient
  • amino acid
  • muscle builder
  • meat
  • protein source

Antonyms

  • carbohydrate
  • lipid
  • fat

Common mistakes

  • Confused with 'proteins' as a countable noun, when 'protein' is often used as an uncountable noun.
  • Incorrectly describing 'protein' in singular when discussing multiple types.
  • Mixing up 'protein' with other nutrients like 'carbohydrates' and 'fats'.