thyroid
/ˈθaɪrɔɪd/noun
1
- (亦作thyroid gland)a large ductless gland in the neck which secretes hormones regulating growth and development through the rate of metabolism甲状腺。
1.1
- mass noun an extract prepared from the thyroid gland of animals and used in treating deficiency of thyroid hormones甲状腺(制)剂。
2
- (亦作thyroid cartilage)a large cartilage of the larynx, a projection of which forms the Adam's apple in humans甲状软骨。
词源
early 18th cent. (as an adjective): from Greek (khondros) thureoeidēs 'shield-shaped (cartilage)', from thureos 'oblong shield'.