Russian tumbleweed
— Noun
– English
～ prickly bushy Eurasian plant; a troublesome weed in central and western United States
Republic of Tunisia
— Noun
– English
～ a republic in northwestern Africa on the Mediterranean coast; achieved independence from France in 1956; "southern Tunisia is mostly desert"
railroad tunnel
— Noun
– English
～ a tunnel through which the railroad track runs
reaction turbine
— Noun
– English
～ a turbine with blades arranged to develop torque from gradual decrease of steam pressure from inlet to exhaust
Republic of Turkey
— Noun
– English
～ a Eurasian republic in Asia Minor and the Balkans; on the collapse of the Ottoman Empire in 1918, the Young Turks, led by Kemal Ataturk, established a republic in 1923
ruddy turnstone
— Noun
– English
～ common Arctic turnstone that winters in South America and Australia
red-bellied turtle
— Noun
– English
～ freshwater turtle of Chesapeake Bay tributaries having red markings on the lower shell
River Tyne
— Noun
– English
～ a river in northern England that flows east to the North Sea
Rh-negative blood type
— Noun
– English
～ the blood group whose red cells lack the Rh factor (Rh antigen)
Rh-positive blood type
— Noun
– English
～ the blood group (approximately 85% of people) whose red cells have the Rh factor (Rh antigen)
roman type
— Noun
– English
～ a typeface used in ancient Roman inscriptions
Rhus typhina
— Noun
– English
～ deciduous shrubby tree or eastern North America with compound leaves that turn brilliant red in fall and dense panicles of greenish yellow flowers followed by crimson acidic berries
rat typhus
— Noun
– English
～ acute infection caused by rickettsia and transmitted by the bite of an infected flea; characterized by fever and chills and muscle aches and a rash
Rhincodon typus
— Noun
– English
～ large spotted shark of warm surface waters worldwide; resembles a whale and feeds chiefly on plankton
Robert Tyre Jones
— Noun
– English
～ United States golfer (1902-1971)
Republic of Uganda
— Noun
– English
～ a landlocked republic in eastern Africa; achieved independence from the United Kingdom in 1962
raw umber
— Noun
– English
～ greenish brown pigment