radio source
— Noun
– English
~ an object that radiates radio waves
Republic of South Africa
— Noun
– English
~ a republic at the southernmost part of Africa; achieved independence from the United Kingdom in 1910; first European settlers were Dutch (known as Boers)
Robert Southey
— Noun
– English
~ English poet and friend of Wordsworth and Coleridge (1774-1843)
russian-speaking
— Adjective
– English
~ able to communicate in Russian
Rubus spectabilis
— Noun
– English
~ large erect red-flowered raspberry of western North America having large pinkish-orange berries
radio-frequency spectrum
— Noun
– English
~ the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
radio spectrum
— Noun
– English
~ the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
red spider mite
— Noun
– English
~ small web-spinning mite; a serious orchard pest
red spider
— Noun
– English
~ small web-spinning mite; a serious orchard pest
rock spikemoss
— Noun
– English
~ tufted spikemoss forming loose spreading mats; eastern North America
ruby spinel
— Noun
– English
~ a spinel used as a gemstone (usually dark red)
Rosa spithamaea
— Noun
– English
~ low-growing bristly shrub of southern Oregon and California with creeping rootstocks and usually corymbose flowers
reverse split
— Noun
– English
~ a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity
rail-splitter
— Noun
– English
~ a laborer who splits logs to build split-rail fences
rough-spoken
— Adjective
– English
~ rude or uncouth in speech
rheumatoid spondylitis
— Noun
– English
~ a chronic form of spondylitis primarily in males and marked by impaired mobility of the spine; sometimes leads to ankylosis
runcible spoon
— Noun
– English
~ a fork-like spoon with a cutting edge; coined by Edward Lear
roseate spoonbill
— Noun
– English
~ tropical rose-colored New World spoonbill
resting spore
— Noun
– English
~ a spore of certain algae or fungi that lies dormant; may germinate after a prolonged period