| rouleaux formation | The arrangement of red blood cells in fluid blood (or in diluted suspensions) with their biconcave surfaces in apposition, thereby forming groups that resemble stacks of coins. Synonym: false agglutination, pseudoagglutination. Origin: Fr. Pl. Of rouleau, a roll (05 Mar 2000) |
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| roulette | 1. A game of chance, in which a small ball is made to move round rapidly on a circle divided off into numbered red and black spaces, the one on which it stops indicating the result of a variety of wagers permitted by the game. 2. A small toothed wheel used by engravers to roll over a plate in order to order to produce rows of dots. A similar wheel used to roughen the surface of a plate, as in making alterations in a mezzotint. 3. <geometry> The curve traced by any point in the plane of a given curve when the latter rolls, without sliding, over another fixed curve. See Cycloid, and Epycycloid. Origin: F, properly, a little wheel or ball. See Rouleau, Roll. Source: Websters Dictionary (01 Mar 1998) |
| round | On every side of, so as to encompass or encircle; around; about; as, the people atood round him; to go round the city; to wind a cable round a windlass. "The serpent Error twines round human hearts." (Cowper) Round about, an emphatic form for round or about. "Moses . . . Set them [The elders] round about the tabernacle." To come round, to gain the consent of, or circumvent, (a person) by flattery or deception. 1. To make circular, spherical, or cylindrical; to give a round or convex figure to; as, to round a silver coin; to round the edges of anything. "Worms with many feet, which round themselves into balls, are bred chiefly under logs of timber." (Bacon) "The figures on our modern medals are raised and rounded to a very great perfection." (Addison) 2. To surround; to encircle; to encompass. "The inclusive verge Of golden metal that must round my brow." (Shak) 3. To bring to fullness or completeness; to complete; hence, to bring to a fit conclusion. "We are such stuff As dreams are made on, and our little life Is rounded with a sleep." (Shak) 4. To go round wholly or in part; to go about (a corner or point); as, to round a corner; to round Cape Horn. 5. To make full, smooth, and flowing; as, to round periods in writing. To round in To haul up; usually, to haul the slack of (a rope) through its leading block, or to haul up (a tackle which hangs loose) by its fall. To collect together (cattle) by riding around them, as on cattle ranches. Origin: Rounded; Rounding. To whisper. "The Bishop of Glasgow rounding in his ear, "Ye are not a wise man," . . . He rounded likewise to the bishop, and said, "Wherefore brought ye me here?"" (Calderwood) Origin: From Roun. 1. Having every portion of the surface or of the circumference equally distant from the center; spherical; circular; having a form approaching a spherical or a circular shape; orbicular; globular; as, a round ball. "The big, round tears." "Upon the firm opacous globe Of this round world." (Milton) 2. Having the form of a cylinder; cylindrical; as, the barrel of a musket is round. 3. Having a curved outline or form; especially, one like the arc of a circle or an ellipse, or a portion of the surface of a sphere; rotund; bulging; protuberant; not angular or pointed; as, a round arch; round hills. "Their round haunches gored." 4. Full; complete; not broken; not fractional; approximately in even units, tens, hundreds, thousands, etc.; said of numbers. "Pliny put a round number near the truth, rather than the fraction." (Arbuthnot) 5. Not inconsiderable; large; hence, generous; free; as, a round price. "Three thousand ducats; 'tis a good round sum." (Shak) "Round was their pace at first, but slackened soon." (Tennyson) 6. Uttered or emitted with a full tone; as, a round voice; a round note. 7. Modified, as a vowel, by contraction of the lip opening, making the opening more or less round in shape; rounded; labialized; labial. 8. Outspoken; plain and direct; unreserved; unqualified; not mincing; as, a round answer; a round oath. "The round assertion." "Sir Toby, I must be round with you." (Shak) 9. Full and smoothly expanded; not defective or abrupt; finished; polished; said of style, or of authors with reference to their style. "In his satires Horace is quick, round, and pleasant." (Peacham) 10. Complete and consistent; fair; just; applied to conduct. "Round dealing is the honor of man's nature." (Bacon) at a round rate, rapidly. In round numbers, approximately in even units, tens, hundreds, etc.; as, a bin holding 99 or 101 bushels may be said to hold in round numbers 100 bushels. <medicine> Round bodies, one turn of a rope round a timber, a belaying pin, etc. To bring up with a round turn, to stop abruptly. Synonym: Circular, spherical, globular, globase, orbicular, orbed, cylindrical, full, plump, rotund. Origin: OF. Roond, roont, reond, F. Rond, fr. L. Rotundus, fr. Rota wheel. See Rotary, and cf. Rotund, roundel, Rundlet. Source: Websters Dictionary (01 Mar 1998) |
| round atelectasis | <syndrome> Collapse of part of the lung caught between shrinking fibrous pleura scars, sometimes resulting from pleural asbestosis. Synonym: round atelectasis. (05 Mar 2000) |
| round bur | A dental bur with the cutting blades spherically arranged. (05 Mar 2000) |
| round cell sarcoma | <tumour> Old term for an undifferentiated malignant neoplasm, believed to be of mesenchymal origin, composed chiefly of closely packed round cells. (05 Mar 2000) |
| round eminence | Longitudinal elevation of the rhomboid fossa, extending along either side of the midline throughout the length of the rhombencephalon; made up of named elevations such as the facial colliculus and the hypoglossal and vagal trigones. Synonym: eminentia medialis, eminentia teres, funiculus teres, round eminence. (05 Mar 2000) |
| round fasciculus | A slender, compact fibre bundle extending longitudinally through the dorsolateral region of the medullary tegmentum, surrounded by the nucleus of the solitary tract, below the obex decussating over the central canal, and descending over some distance into the upper cervical segments of the spinal cord. It is composed of primary sensory fibres that enter with the vagus, glossopharyngeal, and facial nerves, and in part convey information from stretch receptors and chemoreceptors in the walls of the cardiovascular, respiratory, and intestinal tracts; in rostral parts of the tract impulses are generated by the receptor cells of the taste buds in the mucosa of the tongue. Its fibres are distributed to the nucleus of the solitary tract. Synonym: tractus solitarius, fasciculus rotundus, fasciculus solitarius, funiculus solitarius, Gierke's respiratory bundle, Krause's respiratory bundle, round fasciculus, solitary bundle, solitary fasciculus. (05 Mar 2000) |
| round foramen | <anatomy> An opening in the base of the greater wing of the sphenoid bone, transmitting the maxillary nerve. Synonym: round foramen. (05 Mar 2000) |
| round heart | Abnormally smooth arcuate contours of the heart due either to disease of the ventricles or to a false cardiac appearance produced by excessive pericardial fluid. Synonym: globular heart. (05 Mar 2000) |
| round heart disease | A spontaneous cardiomyopathy of unknown aetiology that affects young turkeys; characterised by sudden death due to cardiac arrest. (05 Mar 2000) |
| round ligament | <anatomy> A fibromuscular band that attaches to the uterus and then passes along the broad ligament, out through the inguinal ring, and into the labium majus. (12 Dec 1998) |
| round ligament of elbow joint | A slender band extending from the lateral part of the coronoid process of the ulna distad and laterad to the radius immediately distal to the bicipital tuberosity. Synonym: chorda obliqua, oblique cord, round ligament of elbow joint, Weitbrecht's cord, Weitbrecht's ligament. (05 Mar 2000) |
| round ligament of femur | A flattened ligament that passes from the fovea in the head of the femur to the borders of the acetabular notch (transverse acetabular ligament); developmentally, an artery passes to the head of the femur with the ligament which may or may not persist into adulthood; the ligament does not contribute to the integrity of the joint or control movements there. Synonym: ligamentum capitis femoris, ligamentum teres femoris, round ligament of femur. (05 Mar 2000) |
| round ligament of liver | The remains of the umbilical vein running within the free edge of the falciform ligament from umbilicus to the liver, where it continues within the fissure for the round ligament to the origin of the left portal vein within the porta hepatis. Synonym: ligamentum teres hepatis. (05 Mar 2000) |
| round |
a charge of ammunition for a single shot cycle: an interval during which a recurring sequence of events occurs; "the never-ending cycle of the seasons" beat: a regular route for a sentry or policeman; "in the old days a policeman walked a beat and knew all his people by name" (often plural) a series of professional calls (usually in a set order); "the doctor goes on his rounds first thing every morning"; "the postman's rounds"; "we enjoyed our round of the local bars" round of golf: the activity of playing 18 holes of golf; "a round of golf takes about 4 hours" the usual activities in your day; "the doctor made his rounds" turn: (sports) a period of play during which one team is on the offensive wind around; move along a circular course; "round the bend" the course along which communications spread; "the story is going the rounds in Washington" make round; "round the edges" a serving to each of a group (usually alcoholic); "he ordered a second round" surround: be around; "Developments surround the town"; "The river encircles the village" a cut of beef between the rump and the lower leg pronounce with rounded lips attack: attack in speech or writing; "The editors of the left-leaning paper attacked the new House Speaker" a partsong in which voices follow each other; one voice starts and others join in one after another until all are singing different parts of the song at the same time; "they enjoyed singing rounds" an outburst of applause; "there was a round of applause" polish: bring to a highly developed, finished, or refined state; "polish your social manners" having a circular shape round off: express as a round number; "round off the amount" rung: a crosspiece between the legs of a chair orotund: (of sounds) full and rich; "orotund tones"; "the rotund and reverberating phrase"; "pear-shaped vowels" circle: any circular or rotating mechanism; "the machine punched out metal circles" become round, plump, or shapely; "The young woman is fleshing out" (mathematics) expressed to the nearest integer, ten, hundred, or thousand; "in round numbers" from beginning to end; throughout; "It rains all year round on Skye"; "frigid weather the year around"
출처: wordnet.princeton.edu/perl/webwn
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| Rous sarcoma virus |
(RSV) a usually defective avian leukosis virus producing fibrosarcoma in fowl, especially chickens; some strains have been shown to produce tumors in other animals. See Rous sarcoma, under sarcoma.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| Rous-associated virus |
(RAV) a helper virus in whose presence a defective Rous sarcoma virus is able to form a protein coat.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| Rouget's muscle |
the circular portion of the ciliary muscle.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| Rousselot's caustic |
a caustic containing red mercuric sulfide, burnt sponge, and arsenic trioxide.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| ROU | with roughness or violence |
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| ROU | creeping or climbing evergreen having spiny zigzag stems with shiny leaves and racemes of pale-green flowers |
| ROU | European foxtail naturalized in North America |
| ROU | a preliminary sketch of a design or picture |
| ROU | any fish useless for food or sport or even as bait |
| ROU | of southern and eastern United States |
| ROU | evergreen erect horsetail with rough-edged stems |
| ROU | prepare in preliminary or sketchy form |
| ROU | prepare in preliminary or sketchy form |
| ROU | week-stemmed winter annual native to Mediterranean region for long established in southern United States |
| ROU | a member of the volunteer cavalry regiment led by Theodore Roosevelt in the Spanish-American War (1898) |
| ROU | treat violently |