12-letter words starting with r
- rhinocerical — of or relating to the rhinoceros
- rhinorrhagia — an extreme nosebleed
- rhinorrhoeal — of or relating to rhinorrhoea
- rhizocarpous — having the root perennial but the stem annual, as perennial herbs.
- rhizophagous — feeding on roots.
- rhizophilous — (esp of insects) preferring to live or grow near or on roots
- rhode island — US state
- rhodes grass — a grass, Chloris gayana, native to Africa, used as pasturage and fodder in warm climates.
- rhododendron — any evergreen or deciduous shrub or tree belonging to the genus Rhododendron, of the heath family, having rounded clusters of showy, pink, purple, or white flowers and oval or oblong leaves.
- rhodomontade — rodomontade
- rhombohedral — a solid bounded by six rhombic planes.
- rhombohedron — a solid bounded by six rhombic planes.
- rhopaloceral — of or relating to creatures from the Rhopalocera division of animals, which includes all butterflies, distinguished from moths on account of their club-shaped antennae
- rhyme scheme — the pattern of rhymes used in a poem, usually marked by letters to symbolize correspondences, as rhyme royal, ababbcc.
- rhyming game — a game played using rhyme
- rhynchophore — a member of the Rhynchophora, a former name for the superfamily of beetles (Curculionoidea) that comprises the weevils and bark beetles
- rhyncophoran — any of various beetles, including the weevils, having the head extended to form a snout
- rhythm stick — a small wooden stick used, especially by a child, as a simple percussive instrument in learning the rudiments of musical rhythm.
- rhythmically — periodic, as motion, or a drumbeat.
- rhythmometer — a type of metronome that gives or marks the beat or time in musical movements
- rhythmopoeia — the art or process of composing, for example, music or poetry rhythmically
- rhytidectomy — face-lift.
- rib-tickling — very amusing; funny or hilarious: a book of rib-tickling stories.
- ribbon cable — (hardware) A type of flat multicore cable with cores positioned side-by-side, making it quick and relatively easy to clamp an Insulation Displacement Connector (IDC) across all cores. Ribbon cables typically have grey insulation with cores on a 0.050" pitch and a red stripe marking Pin 1. They are less resilient than screened, multicore cable and are usually used inside equipment where little movement or plugging and unplugging are expected. A common use is connecting a disk drive to the motherboard in a PC.
- ribbon plant — spider plant (def 1).
- ribbon snake — either of two long-tailed garter snakes, Thamnophis proximus or T. sauritus, of eastern and central North America, having a brownish body and yellow or orange stripes.
- ribbon strip — ribbon (def 8).
- ribeye steak — a large beefsteak cut from the outer, or eye, side of the ribs.
- ribonuclease — any of the class of enzymes that catalyze the hydrolysis of RNA.
- rice growing — the cultivation of rice as a food crop
- rice pudding — dessert made from rice and milk
- rice vinegar — a vinegar made from fermented rice or rice wine, used esp in Chinese and Japanese cuisine
- rich mixture — A rich mixture is a fuel/air mixture containing an excessive proportion of fuel.
- richard korf — (person) A Professor of computer science at the University of California, Los Angeles. Richard Korf received his B.S. from MIT in 1977, and his M.S. and Ph.D. in computer science from Carnegie-Mellon University in 1980 and 1983. From 1983 to 1985 he served as Herbert M. Singer Assistant Professor of Computer Science at Columbia University. Dr. Korf studies problem-solving, heuristic search and planning in artificial intelligence. He wrote "Learning to Solve Problems by Searching for Macro-Operators" (Pitman, 1985). He serves on the editorial boards of Artificial Intelligence, and the Journal of Applied Intelligence. Dr. Korf is the recipient of several awards and is a Fellow of the American Association for Artificial Intelligence.
- rickenbacker — Edward Vernon ("Eddie") 1890–1973, U.S. aviator and aviation executive.
- ride a hobby — to be excessively devoted to one's favorite pastime or subject
- ride herd on — a number of animals kept, feeding, or traveling together; drove; flock: a herd of cattle; a herd of sheep; a herd of zebras.
- ride shotgun — a smoothbore gun for firing small shots to kill birds and small quadrupeds, though often used with buckshot to kill larger animals.
- rideau canal — a waterway in SE Ontario, Canada, connecting the Ottawa Riverin Ottawa to Lake Ontario in Kingston. 125 miles (202 km) long.
- ridiculously — causing or worthy of ridicule or derision; absurd; preposterous; laughable: a ridiculous plan.
- riding boots — long boots worn for horse-riding
- riding habit — habit1 (def 11).
- rigging loft — a loft or gallery in a boatbuilder's yard from which rigging can be fitted
- right of way — a common law or statutory right granted to a vehicle, as an airplane or boat, to proceed ahead of another.
- right-angled — A right-angled triangle has one angle that is a right angle.
- right-footer — (esp in Ireland) a Protestant
- right-handed — having the right hand or arm more serviceable than the left; using the right hand by preference: a right-handed painter.
- right-hander — a person who is right-handed, especially a baseball pitcher who throws with the right hand.
- right-minded — having correct, honest, or good opinions or principles.
- right-to-die — asserting or advocating the right to refuse extraordinary medical measures to prolong one's life when one is terminally ill or irreversibly comatose: right-to-die laws.