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Latin subtendere; sub under + tendere to stretch, extend. See tend.


subtend ‎(third-person singular simple present subtends, present participle subtending, simple past and past participle subtended)

  1. (transitive) To extend or stretch underneath or opposite something
    • 2012, Me, myself, us,The Economist, 16th august 2012 issue
      ...trillions of bacteria, each equally an individual, which are found in a person’s gut, his mouth, his scalp, his skin and all of the crevices and orifices that subtend from his body’s surface.
  2. (mathematics) To enclose an arc on a circle with an angle
    A 43° angle subtends an arc about ¾ meter long on a circle with a radius of 1 meter.