noun
thyroid
THEYE-royd
noun
1
A gland in the neck that produces hormones controlling metabolism.
"Her doctor ordered a blood test to check her thyroid."
"An overactive thyroid can cause rapid weight loss."
adj
1
Relating to the thyroid gland.
"He was diagnosed with a thyroid condition last year."
How to Use Thyroid
Learner’s notesIn plain EnglishThe butterfly-shaped gland in your neck that regulates how your body uses energy.
Common pairings
thyroid gland
thyroid hormone
underactive thyroid
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Etymology
From Greek thyreoeidēs, "shield-shaped," describing the gland's shape.