Words in english starting with R

• robustious — Adjective – English ～ noisy and lacking in restraint or discipline; "a boisterous crowd"; "a social gathering that became rambunctious and out of hand"; "a robustious group of teenagers"; "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"; "an unruly class"
• robustly — Adverb – English ～ in a robust manner; "he was robustly built"
• robustness — Noun – English ～ the property of being strong and healthy in constitution
• robustness — Noun – English ～ the characteristic of being strong enough to withstand intellectual challenge; "the lack of robustness in the findings may be due to the small size of the sample"
• roc — Noun – English ～ mythical bird of prey having enormous size and strength
• rocambole — Noun – English ～ European leek cultivated and used like leeks
• roccella — Noun – English ～ a source of the dye archil and of litmus
• Roccellaceae — Noun – English ～ a fungus family of division Lichenes
• Rocco Marciano — Noun – English ～ United States prizefighter who won the world heavyweight championship in 1952 (1924-1969)
• Roccus — Noun – English ～ a genus of Serranidae
• Rocephin — Noun – English ～ a parenteral cephalosporin (trade name Rocephin) used for severe infection of the lungs or throat or ears or urinary tract
• rochambeau — Noun – English ～ French general who commanded French troops in the American Revolution, notably at Yorktown (1725-1807)
• Rochelle powder — Noun – English ～ an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic
• rochester — Noun – English ～ a city in western New York; a center of the photographic equipment industry
• Rochester — Noun – English ～ a town in southeast Minnesota
• Rochon prism — Noun – English ～ optical device that produces plane-polarized ultraviolet light
• rock kangaroo — Noun – English ～ slender long-legged Australian wallabies living in caves and rocky areas
• rock partridge — Noun – English ～ of mountainous areas of southern Europe
• rock pink — Noun – English ～ pink-flowered perennial of rocky regions of western United States
• rock bit — Noun – English ～ a drill bit that has hardened rotating rollers

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