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round,

in music, a perpetual canoncanon,
in music, a type of counterpoint employing the strictest form of imitation. All the voices of a canon have the same melody, beginning at different times. Successive entrances may be at the same or at different pitches.
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 on a tune that returns to its beginning in which all the voices enter at the unison or the octave. An example is Sumer Is Icumen InSumer Is Icumen In
[M.E.,=summer has (literally: is) come in], an English rota or round composed c.1250. It is the earliest extant example of canon, of six part music, and of ground bass. Four tenor voices are in canon and two bass voices sing the pes, or ground, also in canon.
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. Rounds were popular in 17th-century England when the catch reached its height. The catch was originally just a simple round, e.g., Three Blind Mice, written in a single line with the effect gained by having another singer come in ("make the catch") at the right time. Later, comic effects, often quite bawdy, were added, using the interweaving of the parts. The Rounds, Catches and Canons of England (1864) by E. F. Rimbault is a comprehensive collection. The term round was also used to designate a dance performed in a circle and, by extension, to the tunes for such dances.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

round

[rau̇nd]
(engineering)
A series of shots fired either simultaneously or with delay periods between them.
(navigation)
To pass and alter direction of travel, as a vessel rounds a cape.
(ordnance)
A single munition, missile, or device to be loaded on or in a delivery platform, vehicle, or device for purposes of expenditure; the configuration of the round may vary.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

round

1. A wood plane for cutting grooves.
3. A cylindrical metal rod.

round molding, round

A fairly large molding, the section of which is circular (or nearly circular) and convex.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

round

1. Maths
a. forming or expressed by an integer or whole number, with no fraction
b. expressed to the nearest ten, hundred, or thousand
2. in the round Theatre with the audience all round the stage
3. a playing of all the holes on a golf course
4. Archery a specified number of arrows shot from a specified distance
5. Music a part song in which the voices follow each other at equal intervals at the same pitch
6. a sequence of bells rung in order of treble to tenor
7. a dance in which the dancers move in a circle
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

round

To eliminate rightmost digits in a number when absolute precision is not required or used. One of the most common uses of rounding is with dollar amounts, which can result in more than two decimal places after a division. Following are four of many rounding methods:

  Round Half Up    3.455 -> 3.46
                   3.454 -> 3.45

  Round Half Down  3.455 -> 3.45
                   3.456 -> 3.46

  Round Up         3.456 -> 3.46
                   3.453 -> 3.46

  Round Down       3.458 -> 3.45
                   3.453 -> 3.45




Rounding and a Lot More
For more ways to round numbers than you can imagine, as well as to learn how computers perform mathematical functions at the circuit level, read the entertaining and informative book, "How Computers Do Math" by Clive "Max" Maxfield and Alvin Brown. (John Wiley & Sons, Inc. 2005).
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in classic literature ?
"How many times must they go round this inclosure," he inquired, "before the race is ended?"
"The path measures four hundred and forty yards round," he said, when the surgeon had repeated Sir Patrick's question to him.
This sounded nonsense, but Alice very obediently got up, and carried the dish round, and the cake divided itself into three pieces as she did so.
On which the Messenger, to Alice's great amusement, opened a bag that hung round his neck, and handed a sandwich to the King, who devoured it greedily.
To hang about a stable, and collect a gang of the most disreputable dogs to be found in the town, and lead them out to march round the slums to fight other disreputable dogs, is Montmorency's idea of "life;" and so, as I before observed, he gave to the suggestion of inns, and pubs., and hotels his most emphatic approbation.
Having thus settled the sleeping arrangements to the satisfaction of all four of us, the only thing left to discuss was what we should take with us; and this we had begun to argue, when Harris said he'd had enough oratory for one night, and proposed that we should go out and have a smile, saying that he had found a place, round by the square, where you could really get a drop of Irish worth drinking.
It is amusing to observe, when approaching a flock, how the dog immediately advances barking, and the sheep all close in his rear, as if round the oldest ram.
The minute, however, the latter has reached the flock, he turns round and begins to bark, and then all the house-dogs take very quickly to their heels.
And the tree broke at once into blossom, and the birds came and sang on it, and the little boy stretched out his two arms and flung them round the Giant's neck, and kissed him.
He is down upon the pavement; and the crowd eagerly gather round him: each new comer, jostling and struggling with the others to catch a glimpse.
Oliver lay, covered with mud and dust, and bleeding from the mouth, looking wildly round upon the heap of faces that surrounded him, when the old gentleman was officiously dragged and pushed into the circle by the foremost of the pursuers.
It was an old old scarf, full of rents, but it would make a becoming border round her shoulders, and set off the whiteness of her upper arm.