troposphere (atmospheric region)
atmosphere volume 1 page 223
trot (animal locomotion)
horse volume 6 page 86
trout (fish)
MAIN ARTICLE volume 13 page 99
MORE TO EXPLORE
rainbow trout picture, volume 7
page 103, picture, volume 13 page 99
Trucial States: see in index United Arab
Emirates
truck (vehicle)
quarrying picture, volume 11 page 7
true buzzard (bird): see in index common
buzzard
true daisy (flowering plant): see in index
English daisy
true dolphin (mammal)
dolphin volume 4 page 64
true seal (mammal): see in index earless
seal
BRITANNICA STUDENT ENCYCLOPEDIA true seal 263
true tortoise (reptile): see in index tortoise
Truman, Harry S. (president of the U.S.)
MAIN ARTICLE volume 13 page 100, picture,
volume 13 page 100
MORE TO EXPLORE
timeline volume 13 page 100
Truman Doctrine
Trumans presidency volume 13
page 101
trumpet (musical instrument)
wind instruments picture, volume 8
page 217
trumpeter swan (waterfowl)
swan volume 12 page 210
trumpet pitcher plant (plant): see in
index yellow pitcher plant
trunk (zoology) picture, volume 9
page 100
elephant volume 4 page 124
truss (architecture)
architecture volume 1 page 167
truss bridge (transportation structure)
bridge volume 2 page 130, picture, volume
2 page 130
Trusteeship Council (United Nations)
United Nations volume 14 page 22
Truth, Sojourner (U.S. evangelist and
social reformer)
MAIN ARTICLE volume 13 page 102, picture,
volume 13 page 102
try (rugby)
rugby volume 11 page 103
tsar (Russian ruler)
MAIN ARTICLE volume 13 page 103
MORE TO EXPLORE
Lenin volume 7 page 129
Russian Revolution volume 11 page 108
Tselinograd (capital city of Kazakhstan):
see in index Astana
Tshwane (executive capital city of South
Africa): see in index Pretoria
Tshwane Metropolitan Municipality
(governing unit of South Africa)
Pretoria volume 10 page 148
Tsiolkovsky, Konstantin E. (Russian
scientist)
rocket volume 11 page 77
tsunami (giant sea wave)
MAIN ARTICLE volume 13 page 103, picture,
volume 13 page 104
MORE TO EXPLORE
earthquake volume 4 page 92
Indonesia volume 6 page 131
Lisbon volume 7 page 159
Maldives volume 8 page 30
Male volume 8 page 31
Sri Lanka volume 12 page 175
Tsuu Tina (Native American people): see
in index Sarcee
Tswana (people)
Botswana volume 2 page 116
tuba (musical instrument)
wind instruments picture, volume 8
page 217
tube foot (zoology)
starfish volume 12 page 180
tuber (part of plant)
vegetable volume 14 page 61
tuberculosis (disease)
MAIN ARTICLE volume 13 page 104, picture,
volume 13 page 104
MORE TO EXPLORE
animal disease volume 4 page 55
lung volume 7 page 184
tube worm (marine animal) picture, volume
9 page 118
Tubman, Harriet (U.S. abolitionist)
MAIN ARTICLE volume 13 page 105, picture,
volume 13 page 105
MORE TO EXPLORE
African Americans volume 1 page 43
Underground Railroad volume 14
page 9
Tudor, Henry, earl of Richmond (king
of England): see in index Henry VII
Tudor, Mary (queen of England): see in
index Mary I
tug-of-war (athletic contest)
force in action picture, volume 5 page 50
Tukulor (people)
Senegal volume 12 page 67
Tula (ancient city in Mexico)
Toltec volume 13 page 77
tulip (plant and flower)
MAIN ARTICLE volume 13 page 106, picture,
volume 13 page 106
MORE TO EXPLORE
girl carrying tulips picture, volume 9
page 39
tumor (medical disorder)
cancer volume 3 page 30, picture, volume
3 page 30
tuna (fish)
MAIN ARTICLE volume 13 page 106, picture,
volume 13 page 107
tundra (life zone)
MAIN ARTICLE volume 13 page 107, picture,
volume 13 page 107
MORE TO EXPLORE
biome volume 2 page 74
Russia volume 11 page 104
taiga volume 13 page 5
tundra swan (waterfowl): see in index
whistling swan
tungsten (chemical element)
Yukon volume 15 page 97
tunicate (small marine animal)
bioluminescence picture, volume 7
page 148
Tunis (capital city of Tunisia)
MAIN ARTICLE volume 13 page 108, picture,
volume 13 page 108
MORE TO EXPLORE
Tunisia volume 13 page 109
Tunisia (country in Africa)
MAIN ARTICLE volume 13 page 109
MORE TO EXPLORE
climate picture, volume 3 page 138
Ribat of Harthema, Monastir, Tunisia
picture, volume 13 page 110
Tunis picture, volume 13 page 108
tunnel (construction)
mining volume 8 page 132, picture, volume
8 page 133
Tupamaro (guerrilla organization in Uruguay)
Uruguay volume 14 page 43
turban (headdress)
Sikhism volume 12 page 88
turbine engine
internal-combustion engine volume 6
page 141
Turk (people)
archery volume 1 page 166
Islam volume 6 page 165
Turkey volume 13 page 112
264 true tortoise BRITANNICA STUDENT ENCYCLOPEDIA
Turkey (country in Europe and Asia)
MAIN ARTICLE volume 13 page 111
MORE TO EXPLORE
agriculture
apricot volume 1 page 154
fig volume 5 page 18
architecture
Ataturk Mausoleum picture, volume 1
page 131
Hagia Sophia picture, volume 13
page 112
geography
Asia volume 1 page 200
Black Sea picture, volume 2 page 89
Middle East volume 8 page 124
mountainous area picture, volume 13
page 111
history
Cyprus volume 3 page 236
Nicosia volume 9 page 66
Dardanelles volume 4 page 16
Greece volume 5 page 152
Kurds volume 7 page 90
Ottoman Empire: see in index Ottoman
Empire
timeline volume 13 page 111
turkey (bird)
MAIN ARTICLE volume 13 page 114
MORE TO EXPLORE
common turkey picture, volume 13
page 114
Turkic peoples (people): see in index Turk
Turkish Republic of Northern Cyprus
(political division in Cyprus)
Cyprus volume 3 page 237
Turkmen (people)
Turkmenistan volume 13 page 115
Turkmenistan (country in Central Asia)
MAIN ARTICLE volume 13 page 115
MORE TO EXPLORE
market picture, volume 13 page 115
monument in downtown Ashgabat picture,
volume 1 page 199
Turkoman (people): see in index Turkmen
Turner, J. M.W. (English painter)
painting volume 10 page 10
Turner, Nat (U.S. slave)
MAIN ARTICLE volume 13 page 116
turtle (reptile)
MAIN ARTICLE volume 13 page 116
MORE TO EXPLORE
images
desert tortoise picture, volume 13
page 117
eastern box turtle picture, volume 11
page 53
reptile volume 11 page 51
shell volume 12 page 80
Tuscarora (Native American people)
MAIN ARTICLE volume 13 page 117
MORE TO EXPLORE
Iroquois volume 6 page 160
Tuscarora dancer picture, volume 13
page 117
Tusitala (British author): see in index
Stevenson, Robert Louis
tusk (anatomy)
elephant volume 4 page 124
walrus volume 15 page 6
Tuskegee Airmen (U.S. military unit)
MAIN ARTICLE volume 13 page 118, picture,
volume 13 page 118
Tuskegee University (university in
Tuskegee, Alabama, U.S.)
Carver volume 3 page 51
Washington volume 15 page 17
Tutankhamen (king of Egypt)
MAIN ARTICLE volume 13 page 119
MORE TO EXPLORE
ancient Egypt volume 4 page 113
gold mask picture, volume 13 page 119
pharaoh volume 10 page 69
Tutsi (African people)