from the GNU version of the Collaborative International Dictionary of English
- n. A peculiar substance obtained from the thyroid gland, containing from nine to ten per cent of iodine.
from The Century Dictionary and Cyclopedia
- n. A complex substance containing iodine, obtained from the thyroid gland, in which it exists in combination with a globulin as thyreoglobulin. Together with another albuminous substance belonging to the nucleoproteids thyreoglobulin forms the colloid substance of the gland. Also thyro-iodine.
Sorry, no etymologies found.
The colloid material contains an iodine compound, iodothyrin, and is readily stained by eosin.
The secretion of the gland is absorbed into the general circulation through the veins; it consists of a complex colloid substance which contains an iodine-albumin -- iodothyrin -- and plays an important part in maintaining the normal metabolism of the body, particularly of the central nervous and cutaneous tissues in adults, and of the bones in children.