thyroid: meaning, definition, pronunciation and examples
C1Technical/Medical, becoming common in general discourse due to widespread health discussions.
Quick answer
What does “thyroid” mean?
A butterfly-shaped endocrine gland in the neck that produces hormones regulating metabolism, growth, and development.
Audio
Pronunciation
Definition
Meaning and Definition
A butterfly-shaped endocrine gland in the neck that produces hormones regulating metabolism, growth, and development.
Used to refer to the gland itself, conditions affecting it, its hormones, or anatomical structures shaped like a shield (its Greek root meaning).
Dialectal Variation
British vs American Usage
Differences
No significant differences in core meaning or usage. Spelling and pronunciation are consistent.
Connotations
Neutral medical term in both varieties. The associated conditions (e.g., underactive/overactive thyroid) are discussed identically.
Frequency
Equal frequency in medical contexts. Slightly higher general awareness and usage in US media due to pharmaceutical advertising.
Grammar
How to Use “thyroid” in a Sentence
have + a + [adjective] + thyroid (She has an underactive thyroid)suffer from + thyroid + [problem/disease] (He suffers from thyroid disease)test/check + [possessive] + thyroid (The doctor tested her thyroid)Vocabulary
Collocations
Examples
Examples of “thyroid” in a Sentence
verb
British English
- Not standardly used as a verb.
American English
- Not standardly used as a verb.
adverb
British English
- Not used as an adverb.
American English
- Not used as an adverb.
adjective
British English
- She is on medication for a thyroid condition.
- The patient presented with thyroid dysfunction.
American English
- He was diagnosed with thyroid cancer.
- She has a family history of thyroid disease.
Usage
Meaning in Context
Business
Rare except in pharmaceutical, healthcare, or wellness industry contexts (e.g., 'thyroid medication market').
Academic
Common in medical, biological, and endocrinology texts and research papers.
Everyday
Frequent in health discussions, doctor visits, and general wellness media (e.g., 'I'm getting my thyroid checked').
Technical
The primary domain. Precise usage in clinical medicine, diagnostics, and endocrinology.
Vocabulary
Synonyms of “thyroid”
Vocabulary
Antonyms of “thyroid”
Watch out
Common Mistakes When Using “thyroid”
- Mispronunciation: /ˈθɪ.rɔɪd/ (incorrect) vs. /ˈθaɪ.rɔɪd/ (correct).
- Using 'thyroid' as a verb (e.g., 'It thyroids my metabolism' – NO).
- Confusing 'thyroid' (gland) with 'thymus' (a different gland).
FAQ
Frequently Asked Questions
Primarily, yes. It is almost exclusively used as a noun ('the thyroid') or as an adjective placed before another noun ('thyroid hormone', 'thyroid test').
Hyperthyroid (overactive) means the gland produces too much hormone, speeding up metabolism. Hypothyroid (underactive) means it produces too little, slowing metabolism down.
Yes, but you must take synthetic thyroid hormone medication daily for life to replace the hormones the gland would normally produce.
The name comes from the Greek 'thyreoeidēs', meaning 'shield-shaped', due to the shape of the related thyroid cartilage in the neck (Adam's apple).
A butterfly-shaped endocrine gland in the neck that produces hormones regulating metabolism, growth, and development.
Thyroid is usually technical/medical, becoming common in general discourse due to widespread health discussions. in register.
Thyroid: in British English it is pronounced /ˈθaɪ.rɔɪd/, and in American English it is pronounced /ˈθaɪ.rɔɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. The word is strictly technical/literal.”
Learning
Memory Aids
Mnemonic
Think: "THY" sounds like "thigh," but it's in your neck. Remember: Your Thyroid regulates your metabolic rate—high or low. High = Hyper, Low = Hypo.
Conceptual Metaphor
THE THYROID IS AN ENGINE/CONTROL CENTRE (It regulates the body's speed and energy production).
Practice
Quiz
What is the primary function of the thyroid gland?