(anatomy) Of, relating to, or being the thyroid cartilage. / (anatomy) Of, relating to, or being the thyroid gland. / Suggestive of a disordered thyroid gland.

(anatomy) Ellipsis of thyroid cartilage.. / (anatomy) Ellipsis of thyroid gland.. / (medicine) An extract prepared from the thyroid gland of animals and used in treating deficiency of thyroid hormones.

(anatomy) A large butterfly-shaped endocrine gland situated on the front of the neck that produces various hormones.

(biology) a folded membrane within plant chloroplasts from which grana are made, used in photosynthesis

The carnivorous marsupial Thylacinus cynocephalus which was native to Tasmania, now extinct.

plural of thylacine

(biochemistry) A hormone (an iodine derivative of tyrosine), produced by the thyroid gland, that regulates cell metabolism and growth.

(anatomy) The largest cartilage in the larynx; the Adam’s apple

Alternative spelling of antithyroid

(biology) Any marine bivalve of the family Thyasiridae.