Ballpoint-pen meaning

ballpoint
A pen having, instead of a point, a small ball bearing that picks up its ink by rolling against an interior ink reservoir.
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A pen, similar in size and shape to a pencil, having an internal chamber filled with a viscous, quick-drying ink that is dispensed at the tip during use by the rolling action of a metal sphere (around 0.7 mm to 1 mm in diameter).
noun
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