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
red underwing
— Noun
– English
～ moth having dull forewings and red-marked hind wings
rydberg unit
— Noun
– English
～ a wave number characteristic of the wave spectrum of each element
Revolutionary United Front
— Noun
– English
～ a terrorist group formed in the 1980s in Sierra Leone; seeks to overthrow the government and gain control of the diamond producing regions; responsible for attacks on civilians and children, widespread torture and murder and using children to commit atrocities; sponsored by the president of Liberia
redbrick university
— Noun
– English
～ (British informal) a provincial British university of relatively recent founding; distinguished from Oxford University and Cambridge University
run-up
— Noun
– English
～ a substantial increase over a relatively short period of time; "a runup in interest rates"; "market runups are followed by corrections"
rub up
— Noun
– English
～ a review that refreshes your memory; "I need a rub up on my Latin"
runner-up
— Noun
– English
～ the competitor who finishes second
runner-up finish
— Noun
– English
～ a finish in second place (as in a race)
run-up
— Noun
– English
～ the approach run during which an athlete gathers speed