sparring definition of sparring in the Free Online Encyclopedia.

spar. For dogtooth spar, see calcite calcite (kăl`sīt), very widely distributed mineral, commonly white or colorless, but appearing in a great variety of colors owing to
..... Click the link for more information. ; for fluorspar, see fluorite fluorite (fl
..... Click the link for more information. ; for heavy spar, see barite barite (bâr`īt), barytes
..... Click the link for more information. ; for satin spar, see calcite and gypsum gypsum (jĭp`səm), mineral composed of calcium sulfate (calcium, sulfur, and oxygen) with two molecules of water, CaSO₄
..... Click the link for more information. . See also Iceland spar Iceland spar, colorless variety of crystallized calcite , characterized by its properties of transparency and double refraction. It is used chiefly in the manufacture of Nicol prisms , which are essential parts of polarizing microscopes and other optical instruments.
..... Click the link for more information. and feldspar feldspar (fĕl`spär, fĕld`–) or felspar
..... Click the link for more information. .

spar¹

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

spar²

an unaggressive fight

spar

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

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

spar (redirected from sparring)

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