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. Alsothyroid 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 Words From

• thy·roidal adjective
• thyroid·less adjective
• anti·thyroid adjective noun
• postthy·roidal adjective
• pre·thyroid 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

The United States Environmental Protection Agency banned the use of deca-BDE in 2021 after the chemical was linked to cancer, endocrine and thyroid issues, and a host of other ailments.

From Los Angeles Times

He alleged the chemical found in toothpaste and regularly used by dentists "is an industrial waste associated with arthritis, bone fractures, bone cancer, IQ loss, neurodevelopmental disorders, and thyroid disease".

From BBC

Kennedy also asserted that fluoride in the water is “associated with arthritis, bone fractures, bone cancer, IQ loss, neurodevelopmental disorders, and thyroid disease.”

From Salon

He also had diabetes, thyroid issues, angina and had recently had a heart attack.

From BBC

“There may be multifaceted issues, for example if a mother with low milk production has thyroid issues then that can be identified and treated, it is likely to improve her milk production,” she says.

From BBC