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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A line which subtends, especially the chord of an arc.
  • n. The angle subtended by a line at a point.

from the GNU version of the Collaborative International Dictionary of English

  • n. A line subtending, or stretching across; a chord.

from The Century Dictionary and Cyclopedia

  • n. In geom., a line subtending or stretching across; the chord of an are; a line opposite to an angle spoken of.


Sorry, no etymologies found.


  • A rough calculation based on an angular subtense of 1/2 degree and a distance of 30,000 feet suggests that the shadow would be wholly washed out.

    The Glory - The Panda's Thumb


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