Digression
Pronunciation : Di*gres"sion
Part of Speech : n.
Etymology : [L. digressio: cf. F. digression.]
Definition : 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. Sir W. Temple.
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. Shak.
3. (Anat.)
Defn: The elongation, or angular distance from the sun; -- said chiefly of the inferior planets. [R.]
Source : Webster's Unabridged Dictionary, 1913