Definify.com
Webster 1913 Edition
Thyroid
Thy′roid
,Adj.
[Gr.
θυρεοειδήσ
shield-shaped; θυρεόσ
a large, oblong shield (from θύρα
a door) + εἶδοσ
form: cf. F. thyroïde
, thyréoïde
.] 1.
Shaped like an oblong shield; shield-shaped;
as, the
. thyroid
cartilage2.
(Anat.)
Of or pertaining to the thyroid body, thyroid cartilage, or thyroid artery; thyroideal.
Thyroid cartilage
. See under
– Larynx
. Thyroid body
, or
Thyroid gland
(Anat.)
, an endocrine gland having two lobes, located in the floor of the mouth or the region of the larynx, which secretes two hormones (
– thyroxine
and triiodothyronine
) that regulate the rates of growth and metabloism. In man and most mammals it is a highly vascular organ, partly surrounding the base of the larynx and the upper part of the trachea. Cases of hypothyroidism, where the gland is insufficiently active, can be treated by administration of thyroxine or a combination of thyroxine and triiodothyronine. Thyroid dislocation
(Surg.)
, dislocation of the thigh bone into the thyroid foramen.
– Thyroid foramen
, the obturator foramen.
Webster 1828 Edition
Thyroid
THY'ROID
,Adj.
The thyroid cartilage constitutes the anterior,superior,and largest part of the larynx.
The thyroid gland is situated on the sides and front of the lower part of the larynx, and the upper part of the trachea. It is copiously supplied with blood, but is not known to furnish any secretion. It is the seat of the bronchocele or goiter.
Definition 2024
thyroid
thyroid
English
Noun
thyroid (plural thyroids)
- (anatomy) The thyroid gland.
- 2013 August 9, Douglas Main, “Israel Outlaws Water Fluoridation”, in live science, retrieved 2013-09-30:
- Israel is one of the few countries that widely fluoridates, besides the United States, Canada, Ireland, New Zealand and Australia. Fluoridation, the addition of fluoride to public drinking water supplies to reduce cavities, is the subject of intense controversy, especially outside of the United States. But opposition to the practice, on the grounds that fluoride has adverse effects on the thyroid, brain and bones, and is an unethical form of mass-medication, appears to be growing.
-
- The thyroid cartilage.
- (medicine) A preparation obtained from the thyroid gland.
Translations
thyroid gland — see thyroid gland
thyroid cartilage — see thyroid cartilage
a preparation obtained from the thyroid gland
Adjective
thyroid (not comparable)
- Referring to the gland situated in the neck and its blood vessels, etc.
Translations
referring to the gland situated in the neck
Derived terms
Derived terms
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