Rochelle salts
— Noun
– English
~ a double salt used in Seidlitz powder; acts as a cathartic
Republic of El Salvador
— Noun
– English
~ a republic on the Pacific coast of Central America
random sample
— Noun
– English
~ a sample in which every element in the population has an equal chance of being selected
random sample
— Noun
– English
~ a sample grabbed at random
representative sample
— Noun
– English
~ the population is divided into strata and a random sample is taken from each stratum
random sampling
— Noun
– English
~ the selection of a random sample; each element of the population has an equal chance of being selected
representative sampling
— Noun
– English
~ the population is divided into subpopulations (strata) and random samples are taken of each stratum
Republic of San Marino
— Noun
– English
~ the smallest republic in the world; the oldest independent country in Europe (achieved independence in 301); located in the Apennines and completely surrounded by Italy
rough-sand
— Verb
– English
~ sand roughly; "rough-sand the door before painting it"
red sandalwood
— Noun
– English
~ hard durable wood of red sandalwood trees (Pterocarpus santalinus); prized for cabinetwork
red sandalwood
— Noun
– English
~ East Indian tree with racemes of yellow-white flowers; cultivated as an ornamental
red sandalwood
— Noun
– English
~ tree of India and East Indies yielding a hard fragrant timber prized for cabinetwork and dark red heartwood used as a dyewood
red sanders
— Noun
– English
~ tree of India and East Indies yielding a hard fragrant timber prized for cabinetwork and dark red heartwood used as a dyewood
red sanderswood
— Noun
– English
~ tree of India and East Indies yielding a hard fragrant timber prized for cabinetwork and dark red heartwood used as a dyewood
red-backed sandpiper
— Noun
– English
~ small common sandpiper that breeds in northern or Arctic regions and winters in southern United States or Mediterranean regions
rock sandwort
— Noun
– English
~ low perennial tufted plant of southeastern North America