18th-dynasty king of Egypt (reigned c. 1482-1479 BC) who suppressed a revolt in Nubia, Egypt's territory to the south, and also sent a punitive expedition to Palestine against some Bedouins.
Egyptian king of the 18th dynasty (reigned 1479-26 BC), often regarded as the greatest of the rulers of ancient Egypt. Thutmose III was a skilled warrior who brought the Egyptian empire to the zenith of its power by conquering all ...
18th-dynasty king of Egypt (reigned 1400-1390 BC), who secured an alliance with the Indo-European-led Mitanni Empire of northern Syria and ushered in a period of peace at the peak of Egypt's prosperity.
largest carnivorous marsupial of recent times, presumed extinct soon after the last captive individual died in 1936. A slender fox-faced animal that hunted at night for wallabies and birds, the thylacine was 100 to 130 cm (39 to 51 inches) ...
extinct genus of carnivorous marsupials found as fossils in Pliocene deposits in South America (the Pliocene epoch began 5.3 million years ago and ended 1.6 million years ago). Thylacosmilus was as large as a jaguar, and the short skull supported ...
(Thymus vulgaris), pungent herb of the mint family (Lamiaceae, or Labiatae), the dried leaves and flowering tops of which are used to flavour a wide range of foods, including poultry, stuffings, fish, eggs, meats, butter, sauces, soups, sausages, salads, vegetables, ...
the mezereum order of dicotyledonous flowering plants, comprising the family Thymelaeaceae, with 40 genera of shrubs, some trees, and a few herbs, of nearly worldwide distribution.
organic compound of the pyrimidine family that is a constituent of deoxyribonucleic acid (DNA). DNA, along with RNA (ribonucleic acid), regulates hereditary characteristics in all living cells. Like the other nitrogenous components of nucleic acids, thymine is part of thymidine, ...
pyramid-shaped lymphoid organ that, in humans, is immediately beneath the breastbone at the level of the heart. The organ is called thymus because its shape resembles that of a thyme leaf.
town, southern Malawi, in the Shire Highlands. The town is an administrative and trade centre and processes tea, the principal cash crop of the surrounding agricultural area. Tung and coffee are grown locally, and there is experimental, diversified contour farming ...
gas-filled discharge chamber that contains a cathode filament, an anode plate, and one or more grids. An inert gas or metal vapour fills the discharge chamber. The grid controls only the starting of a current and thus provides a trigger ...
any of several types of transistors having four semiconducting layers and therefore three p-n junctions; the thyristor is a solid-state analogue of the thyratron vacuum tube, and its name derives from the combination of the two words thyratron and transistor. ...
any clinical and laboratory procedure that assesses the efficiency of the thyroid gland in synthesizing the two most active thyroid hormones, thyroxine (T4) and triiodothyronine (T3). Nonspecific thyroid tests measure the metabolic effects of the thyroid hormones (see basal metabolic ...
endocrine gland that is situated in the throat below the larynx (voice box); the thyroid secretes hormones vital to metabolism and growth. The gland consists of two oblong lobes lying on either side of the trachea (windpipe) and connected by ...
any of various benign tumours (adenomas) or cancerous tumours of the thyroid gland. Most thyroid tumours are adenomas; these have a wide variation of cellular patterns, usually having well-developed follicles; thus, they are collectively known as follicular adenomas. Cancerous thyroid ...
any of many inflammatory diseases of the thyroid gland. Several nonspecific types of thyroiditis, both acute and chronic, may be caused by any of a number of bacterial and viral organisms. There are, however, two specific, noninfectious types of thyroiditis: ...
one of the two major hormones secreted by the thyroid gland (the other is triiodothyronine). Thyroxine's principal function is to stimulate the consumption of oxygen and thus the metabolism of all cells and tissues in the body. Thyroxine is formed ...
in Greek religion, staff carried by Dionysus, the wine god, and his votaries (Bacchae, Maenads). In early Greek art the Bacchae were usually depicted as holding branches of vine or ivy, but after 530 BC the staff to which the ...
ancient Roman city south of modern Susah in Tunisia. Although it was originally a native community influenced by Carthaginian civilization, Thysdrus probably received Julius Caesar's veterans as settlers in 45 BC and ultimately became a Roman colonia (settlement with full ...
former German corporation that, prior to its 1999 merger with Krupp AG, was the largest steel producer in Europe. It operated ironworks, steelmaking plants, and rolling mills; made building materials, automotive parts, and machinery; and engaged in trading and financial ...
leading German metals, engineering, and manufacturing company founded in 1999 through the merger of Krupp (Fried. Krupp AG Hoesch-Krupp) and Thyssen (Thyssen Industrie AG). The two companies combined at a time of consolidation among many steel companies in Europe and ...
in music, transverse (or side-blown) bamboo flute of the Han Chinese. The name once applied to end-blown (hsiao) flutes as well but is now used strictly for transverse flutes. Ti traditionally have a membrane of bamboo or reed tissue covering ...
in botany, any of the tropical trees and shrubs of the genus Cordyline of the family Liliaceae, native to Asia and some Pacific islands. Many are grown as ornamental plants. Ti, or ti tree (C. australis), is sometimes sold as ...
in Chinese Buddhism, bodhisattva (buddha-to-be) who is especially committed to delivering the dead from the torments of hell. His name is a translation of the Sanskrit Ksitigarbha ("Womb of the Earth"). Ti-ts'ang seeks to deliver the souls of the dead ...
site in central Shanxi province in China containing a series of Buddhist cave temples dating from the mid-6th century. The sculptures in these temples represent the Tang dynasty style of the late 7th and 8th centuries. Many intact and fragmentary ...
in Roman Catholicism, a triple crown worn by the pope or carried in front of him, used at some nonliturgical functions such as processions. Beehive-shaped, it is about 15 inches (38 cm) high and is made of silver cloth and ...
city, northern Algeria. It lies at the southern end of Ouarsenis Massif (in the Tell Atlas) on the slopes of Mount Guezoul (4,510 feet [1,375 metres]) at the edge of the High Plateaus (Hauts Plateaux). Wadi Tiaret flows through the ...
historic river of Europe and the second longest Italian river after the Po, rising on the slope of Monte Fumaiolo, a major summit of the Appennino Tosco-Emiliano. It is 252 mi (405 km) long. Twisting in a generally southerly direction ...
city, northeastern Israel, on the western shore of the Sea of Galilee; one of the four holy cities of Judaism (Jerusalem, Hebron, Tiberias, Zefat [Safed]).
second Roman emperor (AD 14-37), adopted son of Augustus, whose imperial institutions and imperial boundaries he sought to preserve. In his last years he became a tyrannical recluse, inflicting a reign of terror against the major personages of Rome.
Byzantine emperor from 578 who succeeded in defending the empire against the Persians to the east but suffered reverses in conflicts with the Avars and the Slavs to the north and west.
part of the Mid-Sahara Rise of the central Sahara. Mostly in northwestern Chad, the mountains extend into northeastern Niger and southern Libya. The formation is about 300 miles (480 km) long and up to 175 miles (280 km) wide. The ...
historic region and autonomous region of China that is often called "the roof of the world." It occupies about 471,700 square miles (1,221,600 square kilometres) of the plateaus and mountains of Central Asia, including Mount Everest (Chu-mu-lang-ma Feng). It is ...
vast, high plateau in Central Asia and part of China in which the Tibet Autonomous Region, Tsinghai province, western Szechwan province, and southern Uighur Autonomous Region of Sinkiang are located. It lies between the Kunlun Mountains (north) and the Himalayas ...
member of either of two physical types of people who inhabit Tibet or nearby regions and speak Tibetan. Tibetans are sometimes distinguished by physical type, notably (1) a round-headed group found mostly in the cultivated river valleys of central and ...
distinctive form of Buddhism that evolved from the 7th century AD in Tibet. It is based mainly on the rigorous intellectual disciplines of Madhyamika and Yogacara philosophy and utilizes the symbolic ritual practices of Vajrayana (Tantric Buddhism). Tibetan Buddhism also ...
dating system based on a cycle of 60 Tibetan years, each of which usually has 354 days (12 cycles of the phases of the Moon). Adjustment to the solar year of about 365 days is made by intercalation of an ...
floor covering handwoven in Tibet and, more recently, by Tibetan refugees elsewhere. Before 1959, when thousands of refugees left the country after an abortive rebellion against China, the Tibetan carpet was essentially unknown in the West. During the 1960s, however, ...
Tibetic (or Bodic) language belonging to the Tibeto-Burman group of the Sino-Tibetan language family; it is spoken in Tibet, Bhutan, Nepal, and in parts of northern India (including Sikkim). The language is usually divided by scholars into four dialect groups: ...
body of largely religious and occult writings that has developed since the 7th century, when Tibetan became a written language. Until the 13th century most Tibetan literary works were skillfully methodical translations from Sanskrit of Buddhist texts, on which Indian ...
group of languages that includes all Sino-Tibetan languages except those classified as Chinese. (It also excludes the Tai, Karen, and Miao-Yao [Hmong-Mien] languages, when these are sometimes classified as Sino-Tibetan.)
inner and larger of the two bones of the lower leg in vertebrates-the other is the fibula. In humans the tibia forms the lower half of the knee joint above and the inner protuberance of the ankle below. The upper ...
Roman poet, the second in the classical sequence of great Latin writers of elegiacs that begins with Cornelius Gallus and continues through Tibullus and Sextus Propertius to Ovid. Quintilian considered Tibullus to be the finest of them all.
(from the 17th-century French tic or ticq, "a twitching"), a sudden rapid, recurring contraction in a muscle or group of muscles, occurring more often in the upper parts of the body. The movement is always brief, irresistible, and limited to ...
canton, southern Switzerland; wedge shaped, it protrudes into Italy to the west and south and is bounded by the cantons of Valais and Uri to the north and Graubunden to the northeast. About three-fourths of its area is reckoned as ...
