All articles starting with R
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Rhaetavicula
Rhaetavicula (Rhaetavicula contorta) is an extinct Triassic pterioid bivalve genus established by Cox in 1962; its type species is the Rhaetian guide fossil that defined the Rhaetian stage.
Rhaetian Railway Ge 6/6 I
The Rhaetian Railway Ge 6/6 I, nicknamed the Rhaetian Crocodile, is a six-axle electric locomotive built for the Swiss RhB railway between 1921 and 1929.
Rhaetian Railway in the Albula / Bernina Landscapes
Rhaetian Railway in the Albula / Bernina Landscapes is a UNESCO World Heritage site, inscribed in 2008, covering the Albula and Bernina railway lines across the Swiss Alps.
Rhaetic
Rhaetic (Raetic, Rhaetian) is an extinct non-Indo-European Alpine language of the Tyrsenian family with Etruscan and Lemnian, known from about 350 short 6th–1st century BC North Italic inscriptions in the Sanzeno and Magrè alphabets.
Rhagionidae
Rhagionidae (snipe flies) are predaceous brachyceran flies of Tabanomorpha with tapering abdomen and round head; four subfamilies, at least 15 extant genera, and a fossil record back to the Triassic.
Rhamdia quelen
Rhamdia quelen, the jundiá or silver catfish (Quoy & Gaimard, 1824), is a heptapterid catfish from Mexico to central Argentina, head of a species complex, farmed in southern Brazil.
Rhamnaceae
Rhamnaceae, the buckthorn family, is a Rosales family of trees, shrubs, and vines with c. 50-60 genera and 900-1,200 species, cosmopolitan, including Ziziphus jujubes, Rhamnus buckthorns, and Ceanothus ornamentals.
Rhamnogalacturonan-I
Rhamnogalacturonan-I (RG-I) is a highly branched pectic polysaccharide of plant cell walls, first characterized in 1980 and now the basis of commercial carrot and pumpkin dietary-fiber ingredients.
Rhamnose
Rhamnose is a 6-deoxy hexose sugar, 6-deoxy-L-mannose with formula C6H12O5, found in plant cell wall pectins and gram-negative bacterial lipopolysaccharides; because animals lack it, its bacterial enzymes are studied as antibacterial targets.
Rhamnosyltransferase
Rhamnosyltransferase (RHT, Rha-T) is a glycosyltransferase transferring rhamnose from NDP-rhamnose donors (dTDP-, UDP-, GDP-Rha) to proteins, lipids, and glycans, building cell walls, antibiotics, and rhamnosides used in medicine, food, and cosmetics.
Rhamnous
Rhamnous (Ῥαμνοῦς), also spelled Ramnous or Rhamnus, was an ancient Greek deme of Athens on the northeastern coast of Attica near Marathon, known for its sanctuary of Nemesis.
Rhamnus (plant)
Rhamnus (buckthorn) is a genus of about 139 accepted species of shrubs and small trees in Rhamnaceae, native to temperate and subtropical to tropical mountains, with drupes bearing 2-4 stones; R. cathartica is invasive in eastern North America.
Rhamnus alaternus
Rhamnus alaternus (Italian buckthorn, evergreen buckthorn) is a Mediterranean evergreen Rhamnaceae shrub, dioecious, with black 3-stoned drupes; used in North African folk medicine and invasive in California, Australia, and New Zealand.
Rhamnus cathartica
Rhamnus cathartica (common, European, or purging buckthorn) is a dioecious Eurasian Rhamnaceae shrub introduced to North America in the early 1800s as an ornamental and medicinal plant, now an invasive forest understory tree, alternate host of oat crown rust and the soybean aphid, with no approved biocontrol agents.
Rhaphidophoridae
Rhaphidophoridae, the camel or cave crickets (cave wētā), is a wingless, hump-backed family of Orthoptera with about 590 species in ten subfamilies, found worldwide except Antarctica, originating in the Jurassic or Cretaceous.
Rhaphiodon vulpinus
Rhaphiodon vulpinus, the biara, is a monotypic dogtooth characin (Cynodontidae) of the Amazon, Orinoco, and Paraná-Paraguay-Uruguay basins; an elongate piscivorous migrant reaching 80 cm SL, IUCN Least Concern.
Rhapsody in Blue
Rhapsody in Blue is George Gershwin's 1924 work for piano and jazz band, premiered February 12, 1924 at Aeolian Hall with Paul Whiteman's orchestra, orchestrated by Ferde Grofé, famous for its opening clarinet glissando.
Rhapsody of Fire
Rhapsody of Fire, formerly Rhapsody and originally Thundercross, is an Italian symphonic power metal band from Trieste founded by Luca Turilli and Alex Staropoli, known for the Emerald Sword Saga and over a million albums sold.
Rhapsody on Climbing the Tower
Rhapsody on Climbing the Tower (Denglou fu) is a short lyrical fu by Wang Can, written around 204 while he lived in Jingzhou as an unwelcome guest of governor Liu Biao.
Rhapsody on Dwelling in the Mountains
Rhapsody on Dwelling in the Mountains (山居赋) is a long autobiographical fu by the poet Xie Lingyun, describing his Shining estate after his retirement around 425.
Rhapsody on the Goddess of the Luo
Rhapsody on the Goddess of the Luo (洛神赋) is a celebrated fu by Cao Zhi on an encounter with the Luo River goddess, written around 222.
Rhashan Stone
Rhashan Stone, born 1969 in New Jersey, is an American-born British actor, comedian, singer, and writer known for Desmond's, Mutual Friends, Strike Back, RSC and National Theatre stage work, and Headlong writer residency.
RHB Bank
RHB Bank (RHB Bank Berhad) is a Malaysian banking group listed on Bursa Malaysia, operating in seven ASEAN countries with total assets of RM358.1 billion in 2025.
RHD3/Sey1
RHD3/Sey1 (InterPro IPR008803), also called atlastin family: dynamin-like membrane GTPases (atlastins in metazoans, Sey1p in yeast, RHD3 in plants) that mediate GTP-dependent homotypic ER tubule fusion; RHD3 loss causes short wavy Arabidopsis root hairs.
Rhea (bird)
Rhea (bird): South American flightless ratite genus Rheidae, with greater rhea (Rhea americana) and lesser rhea (Rhea pennata); three-toed, 15-30 kg, male-incubated nests, up to 60 km/h.
Rhea (moon)
Rhea, designated Saturn V, is the second largest moon of Saturn, an airless, heavily cratered body of ice and rock discovered by Giovanni Cassini on December 23, 1672.
Rhea (έα) (mythology)
Rhea (Ῥέα) is the Greek Titaness, daughter of Uranus and Gaia, sister and consort of Cronus, and mother of Zeus and the first Olympians; she saved Zeus with the swaddled stone and was later identified with the Phrygian goddess Cybele, worshipped as Meter Theon.
Rhea americana
Rhea americana, the greater rhea or common rhea (ñandú), is the largest South American bird, a flightless ratite of grasslands from Brazil to Argentina. Near Threatened; males incubate eggs of several females.
Rhea Chakraborty
Rhea Chakraborty (रिया चक्रवर्ती), born 1992 in Bangalore, is an Indian actress and former MTV video jockey. Hindi debut Mere Dad Ki Maruti (2013); later linked to the 2020 Sushant Singh Rajput death case, NCB arrest, and 2020 bail.
Rhea Mons
Rhea Mons is a 217-km-wide shield mountain on Venus in Beta Regio at 32.4N, 282.2E, the northern companion of Theia Mons, rising about 4.7 km and cut by the Devana Chasma rift; IAU named 1979 for the Greek Titaness.