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Main

(mīn), river, c.310 mi (500 km) long, formed near Kulmbach, E central Germany, by the confluence of the Roter Main and the Weisser Main, both of which rise in the Fichtelgebirge. It then winds generally west through the rich farmland of central Germany and past the industrial areas of Schweinfurt, Würzburg, Aschaffenburg, and Frankfurt to the Rhine River at Mainz. Navigable from its junction with the Regnitz River, its chief tributary, the Main is an important east-west route. The Ludwig Canal connects it with the Danube River. A recently completed addition to the canal links the Danube with the Rhine, allowing barge traffic from the North Sea to the Black Sea, a distance of more than 2,000 mi (3,200 km). There are about 40 hydroelectric power plants on the Main, of which Griesheim (62,000-kW capacity) is the largest.

Main

In electrical work, the current from which all other branch circuits are taken.

Main

 

a river in the Federal Republic of Germany; the largest right-bank tributary of the Rhine. Length, 524 km; basin area, 27,200 sq km.

The Main is formed by the confluence of the Red Main, which rises on the slopes of the Fränkische Alb, and the White Main, which rises in the Fichtelgebirge mountains. For most of its length the Main flows amid hills in a narrow valley and across a plain. Its high-water period occurs during the winter and the beginning of spring; there are flash floods in the summer, owing to rain. The water level in the Main’s lower course fluctuates by 2-3 m; the average discharge at the mouth is 170 cu m per sec. The Main is navigable for a distance of almost 400 km from the mouth. The Main valley is densely populated, with such cities as Wiirzburg and Frankfurt being located on the river. The waters of the Main are extremely polluted.


Main

 

a river in Chukchi National Okrug, Magadan Oblast, RSFSR. A right-bank tributary of the Anadyr’ River. Length, 475 km; basin area, 32,800 sq km. The Main rises on the slopes of the Penzhina Range from Lake Main. It flows northeast, for the most part within a broad valley; in its lower course it breaks up into branches. It is fed by snow and rain. The average discharge is about 260 cu m per sec. The Main freezes over in mid-October, and the ice breaks up at the end of May. In its lower course the river is navigable during the high-water period by shallow-draft vessels.

main

[mān]
(electricity)
One of the conductors extending from the service switch, generator bus, or converter bus to the main distribution center in interior wiring.
(engineering)
A duct or pipe that supplies or drains ancillary branches.

main

1. In an air-conditioning system, a major duct or pipe for distributing to or collecting from various branches.
2. In any system of continuous piping, the principal artery of the system to which branches may be connected.

main

1
1. Nautical of, relating to, or denoting any gear, such as a stay or sail, belonging to the mainmast
2. a principal pipe, conduit, duct, or line in a system used to distribute water, electricity, etc.
3. 
a. the main distribution network for water, gas, or electricity
b. (as modifier): mains voltage
4. Literary the open ocean
5. Archaic short for Spanish Main
6. Archaic short for mainland

main

2
1. a throw of the dice in dice games
2. a cockfighting contest

Main

a river in central and W Germany, flowing west through W?rzburg and Frankfurt to the Rhine. Length: about 515 km (320 miles)
References in classic literature ?
Now the face of Nicolete, as I learnt in time to call her, was just soul and bloom, perhaps mainly bloom.
To Roosevelt the telephone was mainly for emergencies.
The bulk of them were mainly Gloucester boats, with a scattering from Provincetown, Harwich, Chatham, and some of the Maine ports, but the crews drew from goodness knows where.
Natasha, that winter, had for the first time begun to sing seriously, mainly because Denisov so delighted in her singing.
I have known such passions at every period of my life, but it is mainly of the loves of my youth that I shall write, and I shall write all the more frankly because my own youth now seems to me rather more alien than that of any other person.
She made her way to the side of the first disengaged typist, and sitting in an easy-chair gave down her copy, here and there adding a little but leaving it mainly in the rough.
This was due mainly to her efforts, while Daylight, who rode with a short-handled ax on his saddle-bow, cleared the little manzanita wood on the rocky hill of all its dead and dying and overcrowded weaklings.
Perhaps there was a feeling of delicacy--a backwoods etiquette which restrained them from following him to offer assistance; the court records, from which, mainly, this narrative is drawn, are silent as to anything but the fact.
But I am inclined to attribute the dispersal of fresh-water fish mainly to slight changes within the recent period in the level of the land, having caused rivers to flow into each other.
It was mainly dominated, however, by the spirit of romance (above, pp.
It was believed also that from writers mainly British and American fuller consideration of English Philosophy than it had hitherto received might be looked for.
The department hostile to Alexey Alexandrovitch proved that the condition of the native tribes was exceedingly flourishing, that the proposed reconstruction might be the ruin of their prosperity, and that if there were anything wrong, it arose mainly from the failure on the part of Alexey Alexandrovitch's department to carry out the measures prescribed by law.