thyroid |
of, pertaining to, or affecting the thyroid gland. [5 definitions] |
thyroidectomy |
a surgical operation in which all or part of the thyroid gland is removed. |
thyroid gland |
a two-lobed endocrine gland that is located on both sides of the trachea, with a slender connecting tissue, and that produces secretions that control growth and metabolism. |
thyrotropin |
a hormone secreted by the anterior pituitary that stimulates and regulates the development and secretion of thyroxine. |
thyroxine |
the thyroid hormone that contains iodine and regulates metabolism, or a synthetic preparation of the same compound used to treat thyroid disorders. |
thyrsus |
a branched flower cluster, as of the lilac, in which the main stem does not terminate in a flower but the lateral stems do. |
thyself |
the reflexive form of thou (used chiefly in earlier literature and religious writing); yourself. |
Ti |
symbol of the chemical element titanium. |
ti1 |
in music, the syllable that denotes the seventh tone of a diatonic scale. (See sol-fa.) [2 definitions] |
ti2 |
any of several tropical plants resembling a palm, found in Asia and the Pacific, with long, narrow leaves growing in a tuft at the top. |
Tiananmen Square |
an extensive public plaza in central Beijing, China, known widely in connection with the student protests of 1989. |
tiara |
a crescent-shaped, usu. jewelled crown worn as an ornament by women on formal occasions. [2 definitions] |
Tibet |
an autonomous region of southwestern China on a high plateau north of the Himalayas, noted as a center for Buddhism since the 7th century. |
Tibetan |
of or pertaining to Tibet or its people, culture, language, or the like. [3 definitions] |
tibia |
the inner and larger bone of the human leg between the knee and the ankle; shinbone. [2 definitions] |
tic |
an involuntary spasmodic contraction or twitching of muscles, usu. in the face or extremities, that may occur habitually or in times of stress. |
tic douloureux |
painful tic (French); an affliction marked by painful, darting paroxysms and muscular twitches of the face. |
tick1 |
a recurrent small sharp clicking sound, esp. that of a clock or timing mechanism. [7 definitions] |
tick2 |
any of numerous parasitic bloodsucking arachnids related to spiders and mites, that attach themselves to warm-blooded animals and are in some cases carriers of infectious diseases. |
tick3 |
the cloth casing for a mattress or pillow. |
ticker |
a telegraphic receiver that automatically prints stock market quotations and reports on paper tape. [4 definitions] |