Main

(redirected from Mains)
Also found in: Dictionary, Thesaurus, Medical, Acronyms, Idioms, Wikipedia.

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 periodicals archive ?
This will involve the installation of a water main on the Tyvola Road bridge over the Norfolk-Southern railroad, and widening of the bridge to provide a sidewalk area and structure on which to hang the water main.
The audit team, among other things, recommended MHSB to prepare models and strategies for transforming the MAINS Bazaar, such as appointing a dedicated operator to manage the bazaar and attract more visitors.
There now are many technologies that can be applied to the inspection of force mains.
Pascagoula Main Street mainstreetpascaqoula.com/home
On a cumulative basis since Main Street made its initial investment in AST in May 2005, Main Street realized an internal rate of return of 25.1% and a 5.5 times money invested return on its investment in AST.
Indianola Main Street, Box 151, Indianola, MS 662-887-4454
The main school building contrasts its tail of auditorium with a head of classrooms, a radial three-storey arrangement on three levels facing from east through south to west, They open inwards onto a central hall, the clear and unmistakable heart of the school, which serves as the main communications axis and foyer to the auditorium.
A main east-west axis unites and relates the different functional zones of the scheme at first floor level over the plinth which is much occupied by car parking.
At the north end of the communal space is the main stair, running in an open well with skylight over, and next to it a bed-sized lift.
By running the main double-loaded office tract of the new building north-north-east to bisect the triangular site, they gave it a southeastern orientation and created good entrance conditions on both sides.
Gulfport Main gulfport-ms.gov/MainStreet.shtml Laurie Toups
Beginning in May, Illinois American Water (IAW) will be retiring approximately 9,900 feet of water main that has reached the end of its useful life.