ENGLISH
REFERENCE

thyroid

n. countable
B2 Upper Intermediate US //ˈθaɪɹɔɪd// UK //θˈaɪɹɔɪd// thy·roid

n. a small gland in your neck that controls how fast your body uses energy.

n. a butterfly-shaped endocrine gland located in the neck, responsible for producing hormones that regulate metabolism, growth, and development.


SIMPLE

The doctor checked her thyroid for any swelling.

CONTEXTUAL

She visited the clinic because her thyroid levels were affecting her weight and energy.

COMPLEX

An underactive thyroid can cause fatigue and weight gain, while an overactive one often leads to anxiety and rapid heartbeat.

Synonyms
Origin

Borrowed from New Latin thyreoīdēs, from Ancient Greek θῠρεοειδής (thŭreoeidḗs, “shield-shaped”), from θῠρεός (thŭreós, “an oblong shield”) + -ειδής (-eidḗs, “-form, -like”).

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