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hub

[huhb] /hʌb/
noun
1.
the central part of a wheel, as that part into which the spokes are inserted.
2.
the central part or axle end from which blades or spokelike parts radiate on various devices, as on a fan or propeller.
3.
a center around which other things revolve or from which they radiate; a focus of activity, authority, commerce, transportation, etc.:
Chicago is a railroad hub.
4.
the Hub, Boston, Mass. (used as a nickname).
5.
the peg or hob used as a target in quoits and similar games.
6.
any one of the holes in an electrical panel, into which connections may be plugged.
7.
Coining. a design of hardened steel in relief, used as a punch in making a die.
8.
Surveying. a stake bearing a tack used to mark a theodolite position.
9.
Metalworking. a die forced into a metal blank.
verb (used with object), hubbed, hubbing.
10.
Metalworking. to stamp (a metal blank) with a hub.
Origin
1505-1515
1505-15; perhaps variant of hob1
Synonyms
3. core, pivot, heart.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for hub
  • It was also a sophisticated urban center and hub of regional trade.
  • In the first, a central hub surrounded by eight spokes, the animals were required to return to a specific starting point.
  • hub dynamos are tiny electric generators, hidden in the wheel's hub, that produce a steady current while you ride.
  • The design features three rotor blades wrapped around a conical hub to create a kind of helix.
  • Other solutions tend towards the complicated, with magnets or hub dynamos providing the juice.
  • The space is branded somehow so that users know that this is the research help hub.
  • The suburbs and exurbs are connected via a pretty efficient train hub.
  • The heart of the setup is still the sensor integrated into the rear hub.
  • The emerging world, by contrast, will be a whirling hub of dynamism and creativity.
  • Taking care of kids gives the brain's prefrontal cortex--the hub of decision-making and task-switching--a tough workout.
British Dictionary definitions for hub

hub

/hʌb/
noun
1.
the central portion of a wheel, propeller, fan, etc, through which the axle passes
2.
the focal point
3.
(computing) a device for connecting computers in a network
Word Origin
C17: probably variant of hob1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hub
hub
1511, perhaps from hubbe, originally "lump," the source of hob of a fireplace and hobnail, as in boots. A wheelwright's word, not generally known or used until c.1828; it reached wider currency in connection with bicycles. Meaning "center of interest or activity or importance" first recorded 1858 in writings of Oliver W. Holmes.
"Boston State-House is the hub of the solar system." [O.W. Holmes, "Autocrat of the Breakfast Table"]
Hub cap first recorded 1913.
Online Etymology Dictionary, © 2010 Douglas Harper
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hub in Technology

networking
(By analogy with the hub of a wheel) A device connected to several other devices.
In ARCnet, a hub is used to connect several computers together. In a message handling service, a number of local computers might exchange messages solely with a hub computer. The hub would be responsible for exchanging messages with other hubs and non-local computers.
(1995-01-16)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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