English Reference

Word

tyrosine

Phoneticsty·ro·sine

Definition

n. a type of amino acid that your body uses to make proteins and other important chemicals. It is found in many foods like meat, eggs, and dairy products.

n. an amino acid that is a precursor to the neurotransmitters dopamine and norepinephrine. It is essential for the synthesis of melanin and thyroid hormones.

Examples

“Tyrosine is found in high amounts in dairy products.”

“The body converts tyrosine into dopamine, which helps regulate mood and focus.”

“Researchers are investigating how tyrosine supplementation might help athletes maintain cognitive performance during high-altitude training where oxygen levels are significantly reduced.”

Examples

simple

“Tyrosine is found in high amounts in dairy products.”

contextual

“The body converts tyrosine into dopamine, which helps regulate mood and focus.”

complex

“Researchers are investigating how tyrosine supplementation might help athletes maintain cognitive performance during high-altitude training where oxygen levels are significantly reduced.”

Real-World Examples

“A large study involving more than 270,000 people has linked higher blood levels of the amino acid tyrosine to a shorter lifespan in men.”
ScienceDaily · 6 Sept 2026
“The team also noticed that Lsp2 is unusually rich in two amino acids, phenylalanine and tyrosine.”
Ars Technica · 29 Sept 2026

Etymology

From Ancient Greek τῡρός (tūrós, “cheese”) + -ine (since first discovered in cheese); surface analysis is approximately tyro- + -ine.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

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C1 · Advanced
Frequency
Occasional
Updated

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English Reference