Definitions for protein
ˈproʊ tin, -ti ɪnpro·tein

Princeton's WordNet(5.00 / 1 vote)Rate this definition:

1. protein(noun)

   any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes

   "a diet high in protein"

Wiktionary(3.00 / 3 votes)Rate this definition:

1. protein(Noun)

   Any of numerous large, complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.

2. protein(Noun)

   One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods and some vegetables, such as legumes. see carbohydrate and fat for the other two major classes

Webster Dictionary(0.00 / 0 votes)Rate this definition:

1. Protein(noun)

   a body now known as alkali albumin, but originally considered to be the basis of all albuminous substances, whence its name

   Etymology: [Gr. prw^tos first: cf. prwtei^on the first place.]

Freebase(0.00 / 0 votes)Rate this definition:

1. Protein

   Proteins are large biological molecules consisting of one or more chains of amino acids. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, replicating DNA, responding to stimuli, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in folding of the protein into a specific three-dimensional structure that determines its activity. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of adjacent amino acid residues. The sequence of amino acids in a protein is defined by the sequence of a gene, which is encoded in the genetic code. In general, the genetic code specifies 20 standard amino acids; however, in certain organisms the genetic code can include selenocysteine and—in certain archaea—pyrrolysine. Shortly after or even during synthesis, the residues in a protein are often chemically modified by posttranslational modification, which alters the physical and chemical properties, folding, stability, activity, and ultimately, the function of the proteins. Sometimes proteins have non-peptide groups attached, which can be called prosthetic groups or cofactors. Proteins can also work together to achieve a particular function, and they often associate to form stable protein complexes.

Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Protein

   prō′tē-in, n. the first element in any compound: formerly the supposed common radical of the group of bodies which form the most essential articles of food, albumen, fibrine, &c.—n. Prō′tēid, a body containing protein: one of several bodies which go to make up the soft tissues of animals and vegetables. [Gr. prōtos, first, suffix -in.]

Editors Contribution(0.00 / 0 votes)Rate this definition:

1. protein

   A type of matter, molecule or form of food.

   Proteins differ from one another primarily in their sequence of amino acids, which is created by the nucleotide sequence of their genes.

   Submitted by MaryC on September 9, 2015  

Suggested Resources(1.00 / 1 vote)Rate this definition:

1. protein

   Song lyrics by protein -- Explore a large variety of song lyrics performed by protein on the Lyrics.com website.

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'protein' in Spoken Corpus Frequency: #3371

2. Nouns Frequency

   Rank popularity for the word 'protein' in Nouns Frequency: #1090

Anagrams for protein »

1. interop, pointer, pterion, repoint, tropein, tropine

How to pronounce protein?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say protein in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of protein in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of protein in Pythagorean Numerology is: 7

Examples of protein in a Sentence

1. Vince Lu:

   After the coronavirus, Chinese people have more consciousness not to eat wild animals and eat the right sources of protein.

2. Axel Petzold:

   Proteins are very stable over time if stored in a specific way, the specific way is aggregate formation. It was interesting to learn that brain protein aggregates were more stable than DNA.

3. Professor House:

   Imagine if someone were to finetune our system so that you could get 85 per cent of the carbon and nitrogen back from waste into protein without having to use hydroponics or artificial light, that would be a fantastic development for deep-space travel. It’s faster than growing tomatoes or potatoes.

4. Vandana Sheth:

   If you do choose to provide a plant-based milk to your child [ and ] if over the age of 2, I would suggest soy, as it provides about 6 to 8 grams of protein per cup, it's also a good idea to consult with a registered dietitian to discuss your child's unique situation and get guidance about the right choice to allow for normal growth and development.

5. Gabrielle Douglas:

   I like to stick with lean protein to help with my muscle recovery after hard workouts, so my grandma prepared me a delicious chicken breast and grilled asparagus with balsamic vinegar, it was so good! To treat myself, I dipped a handful of almonds in 2 ounces of melted dark chocolate. It really satisfied my sweet tooth!

Images & Illustrations of protein

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