spar

spar

¹

1. 

a. any piece of nautical gear resembling a pole and used as a mast, boom, gaff, etc.

b. (as modifier): a spar buoy

2. a principal supporting structural member of an aerofoil that runs from tip to tip or root to tip

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spar

²

an unaggressive fight

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spar

any of various minerals, such as feldspar or calcite, that are light-coloured, microcrystalline, transparent to translucent, and easily cleavable

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

spar

[spär]

(aerospace engineering)

A principal spanwise member of the structural framework of an airplane wing, aileron, stabilizer, and such; it may be of one-piece design or a fabricated section.

(mining engineering)

A small clay vein in a coal seam.

(mineralogy)

Any transparent or translucent, nonmetallic, light-colored, readily cleavable, crystalline mineral; examples are calespar and fluorspar.

(naval architecture)

A long, round stick of steel or wood, often tapered at one or both ends, and usually a part of a ship's masts or rigging.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

spar

1. A common rafter.

2. A bar for fastening a gate or door.

3. A heavy round timber.

4.See brotch.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

spar

A principal lateral, span-wise load-carrying member of an airplane or control surface.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

SPAR

Early system on Datatron 200 series. Listed in CACM 2(5):16 (May 1959).

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Spar

 

the equipment above the deck of a ship that is used for mounting loading gear, signals, lights, and radio antennas. Spars are also used as observation and communication posts. On modern self-propelled ships, spars include the masts, topmasts, yards, gaffs, and loading booms. On sailing ships, spars are used for raising, turning, and furling the sails.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.