English · Word Candidate

protein

/ˈpɹəʊ.ti.ɪn/

Proposed by a contributor, not yet supported by evidence.

Also seen as: proteins

Sense 1

Both English Tiếng Việt

Meaning · English

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.

Nghĩa · Tiếng Việt

phân tử lớn, phức tạp được tạo ra tự nhiên từ chuỗi axit amin

Machine-translated — suggest a fix

Noun

Examples

Proteins carry out the bulk of cellular functions, including relaying signals, providing structural support, and accelerating biochemical reactions.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Both English Tiếng Việt

Meaning · English

One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (meat) and some vegetables, such as legumes.

Nghĩa · Tiếng Việt

một trong ba loại thực phẩm chính cung cấp năng lượng

Machine-translated — suggest a fix

Noun

Examples

Along with carbohydrates and fat, protein is one of the three main macronutrients that make up our diet. Furthermore, it is the only macronutrient that supplies us with amino acids, making it essential for survival.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “protein” mean?

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.

Is “protein” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.