Digression /(?)/

Di·gres·sion

Digression

n.
  1. The act of digressing or deviating, esp. from the main subject of a discourse; hence, a part of a discourse deviating from its main design or subject.
    The digressions I can not excuse otherwise, than by the confidence that no man will read them.
  2. A turning aside from the right path; transgression; offense. [R.]
    Then my digression is so vile, so base, That it will live engraven in my face.
  3. The elongation, or angular distance from the sun; -- said chiefly of the inferior planets. (Anat.) [R.]