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spherical
spherical aberration
spherical angle
spherical coordinates
spherical geometry
spherical polygon
spherical triangle
spherical trigonometry
spherics
sphero-
spheroid
spherometer
spheroplast
spherule
spherulite
sphery
sphincter
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sphene
sphene [ sfeen ]


noun 
Definition:
 
titanium-containing mineral: a brown black mineral composed of calcium titanium silicate. Source: igneous rocks.
[Early 19th century. Via French< Greek sphēn "wedge"]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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