thyroid

[thahy-roid]

adjective

1. of or relating to the thyroid gland.

2. of or relating to the largest cartilage of the larynx, forming the projection known in humans as the Adam's apple.

noun

1. thyroid gland.

2. the thyroid cartilage.

3. an artery, vein, etc., in the thyroid region.

4. Medicine/Medical.,  a preparation made from the thyroid glands of certain animals, used in treating hypothyroid conditions.

thyroid

/ ˈθaɪrɔɪd /

adjective

1. of or relating to the thyroid gland

2. of or relating to the largest cartilage of the larynx

noun

1. See thyroid gland

2. Also: thyroid extract. the powdered preparation made from the thyroid gland of certain animals, used to treat hypothyroidism

thyroid

1. A large gland in the neck that functions in the endocrine system. The thyroid secretes hormones that regulate growth and metabolism.

Other Word Forms

• thyroidal adjective
• thyroidless adjective
• antithyroid adjective
• postthyroidal adjective
• prethyroid adjective

Word History and Origins

Origin of thyroid¹

1685–95; variant of thyreoid < Greek thyreoeidḗs shield-shaped, equivalent to thyre ( ós ) oblong shield (literally, doorlike object, equivalent to thýr ( a ) door + -eos adj. suffix) + -oeidēs -oid

Word History and Origins

Origin of thyroid¹

C18: from New Latin thyroidēs, from Greek thureoeidēs, from thureos oblong (literally: door-shaped) shield, from thura door

Example Sentences

Women who experience continuing thyroid hormone irregularities throughout pregnancy may face a higher chance of having a child diagnosed with autism, according to a study released in The Journal of Clinical Endocrinology & Metabolism.

Read more on Science Daily

But in the event of a nuclear accident, people who may be exposed to iodine 131 can take potassium iodide tablets, which provide enough non-radioactive iodine 127 to saturate the thyroid.

Read more on Literature

"In the same week, my grandmother got diagnosed with thyroid cancer and given months to live," says Nash.

Read more on BBC

She has regular contact with her GP surgery as she is on thyroid medication after having half her larynx removed because of a benign tumour.

Read more on BBC

He was “working with the new FDA,” he said in a LinkedIn post in November, to remove from the market desiccated thyroid extracts, a product critical to another company led by Tang, American Laboratories Holdings.

Read more on The Wall Street Journal