| Riddim | Riddle Game | River Etherow |
| River MerseyThe River Mersey is a river in the north west of England. The river's name is derived from the Norse language. The Mersey is formed from three tributaries: the River Etherow, the River Goyt and the River Tame; becoming the Mersey near Stockport, Greater M | River TameThere are two Rivers called River Tame in England: River Tame (Yorkshire) River Tame (West Midlands). | River DerwentRiver Derwent is the name of several rivers in England: River Derwent, Derbyshire; see also Derwent Reservoir, Derbyshire, also Upper Derwent Valley. River Derwent, North East England on the border between County Durham and Northumberland; see also: Derwe |
| River DouglasThe River Douglas also known as the River Asland is a river in Lancashire in the north west of England. It is a tributary of the River Ribble and has itself two tributaries, the River Tawd and the River Yarrow. At Tarleton, the Douglas joins with the Leed | RicinThe protein ricin (pronounced rye-sin is a poison manufactured from the castor bean Ricinus communis . Ricin can be extracted from castor beans and is known to have an average lethal dose of 0. 2 milligrams (1/5,000th of a gram). It is considered to be tw | River YarrowThe River Yarrow is a river in Lancashire in the north west of England. It is a tributary of the River Douglas. It rises on Rivington Moor near Upper Rivington Reservoir, passes under the M61 motorway and the Leeds and Liverpool Canal. South of Chorley it |
| Rick SpringfieldRick Springfield (born Richard Lewis Springthorpe August 23, 1949) is an Australian pop singer whose career began as a singer in Rock House, followed by Zoot, one of the most popular Australian groups of the late Sixties. He then went solo in 1971 (see 19 | Rigor mortisRigor mortis is a recognizable sign of death that is caused by a chemical change in the muscles, causing the limbs of the corpse to become stiff ("rigor") and impossible to move or manipulate. Typically rigor sets in several hours after clinical death and | River Don, AberdeenshireThe article is about the Don River in Scotland. For other rivers with the same name, see Don River. The River Don is a river in Scotland. It rises in the Grampians and flows 131km (82m) eastwards to the North Sea at Aberdeen, via Alford, Kemnay, Inverurie |
| River Don, England | River Goyt | River Dane |
| River Manifold | River delta | RISC OS |
| RiscOS | Ritchie Blackmore's Rainbow | Richard Threlkeld Cox |
| Richard Cox | Ricky Byrdsong | Ripper |
| River Tay | Riksdag of the Estates | Riparian |
| Richard Crenna | Ride (band) | Richard Farnsworth |
| Ribena | Richmond, British Columbia | Riemann surface |
| River Mole | Rio Cuarto craters | Riemst |
| Ride theory | Rixensart | Ricardo Mayorga |
| Riesling | Riemann sum | Richard II |
| Richard Reid | Richard III (play) | Risk-aware consensual kink |
| Richard Thompson | River Test | Richard Powers |
| Rick D. Husband | Ringsaker | Ringebu |
| Ringerike | Richard Simon | Rindal |
| Risør | Rissa, Norway | Rio Ferdinand |
| Richard Bong | Rick Laird | Richie Hawtin |
| Riff | Richmond, North Yorkshire | RijnGouweLijn |
| Ringu | Ribaldry | Richard Lindzen |
| Richard Jordan Gatling | River Liffey | Riemann sphere |
| Rival Schools | Ring Ouzel | Risperidone |
| Richard Deacon | Richard Ford | Rising Up |
| RI:SE | Richard Alston Dance Company | Riverdale (Archie Comics) |
| Richard Bentley | Richard Long | Richard Dawes |
| Richard Hurd | River Tweed | Richard Porson |
| Richard François Brunck | Ritten-Renon | Rigoberta Menchú |
| River Tees | Rid of Me | Ripple tank |
| Ricardian equivalence | River Plate | Riksdaler |
| Richard Flecknoe | Richard Baxter | Ricinulei |
| Riemannian geometry | Richard Burbage | Richard Deane |
| Richard Scarry | Rio (album) | Rio |
| Richard Ramirez | Richard Boyle, 1st Earl of Burlington | Richard Boyle |
