| Rollet, Alexander | <person> Austrian physiologist, 1834-1903. See: Rollet's stroma, Ritter-Rollet phenomenon. (05 Mar 2000) |
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| rolling | 1. Rotating on an axis, or moving along a surface by rotation; turning over and over as if on an axis or a pivot; as, a rolling wheel or ball. 2. Moving on wheels or rollers, or as if on wheels or rollers; as, a rolling chair. 3. Having gradual, rounded undulations of surface; as, a rolling country; rolling land. Rolling bridge. See the Note under Drawbridge. Rolling circle of a paddle wheel, the circle described by the point whose velocity equals the velocity of the ship. Rolling fire, tackle used to steady the yards when the ship rolls heavily. Source: Websters Dictionary (01 Mar 1998) |
| rolling circle | A mechanism for the replication of circular DNA. (05 Mar 2000) |
| rolling circle mechanism | <molecular biology> A mechanism of DNA replication in many viral DNAs, in bacterial f factors during mating and of certain DNAs in gene amplification in eukaryotes. DNA synthesis starts with a cut in the + strand at the replication origin, the 5' end rolls out and replication starts at the 3' side of the cut around the intact circular DNA strand. Replication of the 5' end (tail) takes place by the formation of Okazaki fragments. (18 Nov 1997) |
| rolling-pin | A cylindrical piece of wood or other material, with which paste or dough may be rolled out and reduced to a proper thickness. Source: Websters Dictionary (01 Mar 1998) |
| rolly-poly | A kind of pudding made of paste spread with fruit, rolled into a cylindrical form, and boiled or steamed. Shaped like a rolly-poly; short and stout. Alternative forms: roly-poly. Source: Websters Dictionary (01 Mar 1998) |
| romage | See Rummage. Source: Websters Dictionary (01 Mar 1998) |
| romaic | Of or relating to modern Greece, and especially to its language. The modern Greek language, now usually called by the Greeks Hellenic or Neo-Hellenic. The Greeks at the time of the capture of Constantinople were proud of being "Romai^oi, or Romans . . . Hence the term Romaic was the name given to the popular language. . . . The Greek language is now spoken of as the Hellenic language. Origin: NGr., cf. F. Romaique. See Roman. Source: Websters Dictionary (01 Mar 1998) |
| roman | 1. Of or pertaining to Rome, or the Roman people; like or characteristic of Rome, the Roman people, or things done by Romans; as, Roman fortitude; a Roman aqueduct; Roman art. 2. Of or pertaining to the Roman Catholic religion; professing that religion. 3. Upright; erect; said of the letters or kind of type ordinarily used, as distinguished from Italic characters. Expressed in letters, not in figures, as I, IV, i, iv, etc.; said of numerals, as distinguished from the Arabic numerals, 1, 4, etc. Roman alum, the composite order. See Composite. Origin: L. Romanus, fr. Roma Rome: cf. F. Romain. Cf. Romaic, Romance, Romantic. 1. A native, or permanent resident, of Rome; a citizen of Rome, or one upon whom certain rights and privileges of a Roman citizen were conferred. 2. Roman type, letters, or print, collectively; in distinction from Italics. Source: Websters Dictionary (01 Mar 1998) |
| Roman fever | Malignant tertian, falciparum, or aestivoautumnal fever, formerly prevalent in the Roman Campagna and in the city of Rome; caused by Plasmodium falciparum. (05 Mar 2000) |
| roman world | A historical and cultural entity dispersed across a wide geographical area under the political domination and influence of ancient rome, bringing to the conquered people the roman civilization and culture from 753 b.c. To the beginning of the imperial rule under augustus in 27 b.c. The early city built on seven hills grew to conquer sicily, sardinia, carthage, gaul, spain, britain, greece, asia minor, etc., and extended ultimately from mesopotamia to the atlantic. Roman medicine was almost entirely in greek hands, but rome, with its superior water system, remains a model of sanitation and hygiene. (12 Dec 1998) |
| Romana's sign | <clinical sign> Marked oedema of one or both eyelids, usually a unilateral palpebral oedema, thought to be a sensitization response to the bite of a triatomine bug infected with Trypanosoma cruzi, and a strong suggestion of acute Chagas' disease. (05 Mar 2000) |
| Romana, Cecilio | <person> Argentinian physician in Brazil, *1899. See: Romana's sign. (05 Mar 2000) |
| romance | 1. A species of fictitious writing, originally composed in meter in the Romance dialects, and afterward in prose, such as the tales of the court of Arthur, and of Amadis of Gaul; hence, any fictitious and wonderful tale; a sort of novel, especially one which treats of surprising adventures usually befalling a hero or a heroine; a tale of extravagant adventures, of love, and the like. "Romances that been royal." "Upon these three columns chivalry, gallantry, and religion repose the fictions of the Middle Ages, especially those known as romances. These, such as we now know them, and such as display the characteristics above mentioned, were originally metrical, and chiefly written by nations of the north of France." (Hallam) 2. An adventure, or series of extraordinary events, resembling those narrated in romances; as, his courtship, or his life, was a romance. 3. A dreamy, imaginative habit of mind; a disposition to ignore what is real; as, a girl full of romance. 4. The languages, or rather the several dialects, which were originally forms of popular or vulgar Latin, and have now developed into Italian. Spanish, French, etc. (called the Romanic languages). 5. A short lyric tale set to music; a song or short instrumental piece in ballad style; a romanza. Synonym: Fable, novel, fiction, tale. Origin: OE. Romance, romant, romaunt, OF. Romanz, romans, romant, roman, F. Roman, romance, fr. LL. Romanice in the Roman language, in the vulgar tongue, i. E, in the vulgar language which sprang from Latin, the language of the Romans, and hence applied to fictitious compositions written in this vulgar tongue; fr. L. Romanicus Roman, fr. Romanus. See Roman, and cf. Romanic, Romaunt, Romansch, Romanza. Of or pertaining to the language or dialects known as Romance. To write or tell romances; to indulge in extravagant stories. "A very brave officer, but apt to romance." (Walpole) Origin: Romanced; Romancing. Source: Websters Dictionary (01 Mar 1998) |
| romancer | One who romances. Source: Websters Dictionary (01 Mar 1998) |