BALLPOINTPEN

Ballpoint pen

A ballpoint pen is a writing instrument which dispenses a viscous ink from an internal reservoir through the rolling action of a metal ball at its point. This "ball point" may vary in diameter, and may be made of brass, steel, or tungsten carbide.

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ballpoint pen

Noun

  1. 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).


The above text is a snippet from Wiktionary: ballpoint pen
and as such is available under the Creative Commons Attribution/Share-Alike License.

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