The Collaborative International Dictionary of English v.0.48:

Glance \Glance\, n. [Akin to D. glans luster, brightness, G.
   glanz, Sw. glans, D. glands brightness, glimpse. Cf. Gleen,
   Glint, Glitter, and Glance a mineral.]
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   1. A sudden flash of light or splendor.
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            Swift as the lightning glance.        --Milton.
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   2. A quick cast of the eyes; a quick or a casual look; a
      swift survey; a glimpse.
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            Dart not scornful glances from those eyes. --Shak.
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   3. An incidental or passing thought or allusion.
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            How fleet is a glance of the mind.    --Cowper.
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   4. (Min.) A name given to some sulphides, mostly
      dark-colored, which have a brilliant metallic luster, as
      the sulphide of copper, called copper glance.
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   Glance coal, anthracite; a mineral composed chiefly of
      carbon.

   Glance cobalt, cobaltite, or gray cobalt.

   Glance copper, chalcocite.

   Glance wood, a hard wood grown in Cuba, and used for
      gauging instruments, carpenters' rules, etc. --McElrath.
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