Adjective
thyroglossal (not comparable)
(medicine) Of or pertaining to the thyroglossal duct
a thyroglossal carcinoma
Congenital disorders A persistent thyroglossal duct is the most common clinically significant congenital disorder of the thyroid gland. Source: Internet
During migration, the thyroid remains connected to the tongue by a narrow canal, the thyroglossal duct. Source: Internet