Definition of thyroxine in English:

thyroxine

noun θʌɪˈrɒksɪnθʌɪˈrɒksiːn

mass nounBiochemistry

The main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development.
〔生化〕甲状腺素
An iodine-containing amino acid; chemical formula: C₁₅H₁₁NO₄I₄
Example sentencesExamples
- Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine.
- He tested for thyrotrophin releasing hormone in 67 women with menorrhagia who had normal concentrations of thyroxine and thyroid stimulating hormone.
- Hormones that require amino acids for starting materials include thyroxine (the hormone produced by the thyroid gland), and auxin (a hormone produced by plants).
- When your thyroid gland produces too much of the hormone thyroxine, you develop hyperthyroidism.
- The thyroid releases too much of the hormone thyroxine, which increases the person's basal metabolic rate.

Origin

Early 20th century: from thyroid + ox- 'oxygen' + in from indole (because of an early misunderstanding of its chemical structure), altered by substitution of -ine⁴.

Definition of thyroxine in US English:

thyroxine

(also thyroxin)

noun

Biochemistry

The main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development.
〔生化〕甲状腺素
An iodine-containing amino acid; chemical formula: C₁₅H₁₁NO₄I₄
Example sentencesExamples
- When your thyroid gland produces too much of the hormone thyroxine, you develop hyperthyroidism.
- Hormones that require amino acids for starting materials include thyroxine (the hormone produced by the thyroid gland), and auxin (a hormone produced by plants).
- Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine.
- The thyroid releases too much of the hormone thyroxine, which increases the person's basal metabolic rate.
- He tested for thyrotrophin releasing hormone in 67 women with menorrhagia who had normal concentrations of thyroxine and thyroid stimulating hormone.

Origin

Early 20th century: from thyroid + ox- ‘oxygen’ + in from indole (because of an early misunderstanding of its chemical structure), altered by substitution of -ine.

词汇	thyroxine
释义	Definition of thyroxine in English: thyroxine noun θʌɪˈrɒksɪnθʌɪˈrɒksiːn mass nounBiochemistry The main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development. 〔生化〕甲状腺素 An iodine-containing amino acid; chemical formula: C₁₅H₁₁NO₄I₄ Example sentencesExamples Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine. He tested for thyrotrophin releasing hormone in 67 women with menorrhagia who had normal concentrations of thyroxine and thyroid stimulating hormone. Hormones that require amino acids for starting materials include thyroxine (the hormone produced by the thyroid gland), and auxin (a hormone produced by plants). When your thyroid gland produces too much of the hormone thyroxine, you develop hyperthyroidism. The thyroid releases too much of the hormone thyroxine, which increases the person's basal metabolic rate. Origin Early 20th century: from thyroid + ox- 'oxygen' + in from indole (because of an early misunderstanding of its chemical structure), altered by substitution of -ine⁴. Definition of thyroxine in US English: thyroxine (also thyroxin) noun Biochemistry The main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development. 〔生化〕甲状腺素 An iodine-containing amino acid; chemical formula: C₁₅H₁₁NO₄I₄ Example sentencesExamples When your thyroid gland produces too much of the hormone thyroxine, you develop hyperthyroidism. Hormones that require amino acids for starting materials include thyroxine (the hormone produced by the thyroid gland), and auxin (a hormone produced by plants). Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine. The thyroid releases too much of the hormone thyroxine, which increases the person's basal metabolic rate. He tested for thyrotrophin releasing hormone in 67 women with menorrhagia who had normal concentrations of thyroxine and thyroid stimulating hormone. Origin Early 20th century: from thyroid + ox- ‘oxygen’ + in from indole (because of an early misunderstanding of its chemical structure), altered by substitution of -ine.
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