[θʌɪˈrɒksɪn], (Noun)

Definitions:
- the main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development


Phrases:

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