(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 ■[mass noun]an extract prepared from the thyroid gland of animals and used in treating deficiency of thyroid hormones 甲状腺(制)剂
(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
语源
early 18th cent. (as an adjective): from Greek (khondros) thureoeidēs 'shield-shaped (cartilage'), from thureos 'oblong shield'