Source : Webster's Revised Unabridged Dictionary (1913)

Abruption \Ab*rup"tion\, n. [L. abruptio, fr. abrumpere: cf. F.
   abruption.]
   A sudden breaking off; a violent separation of bodies.
   --Woodward.

Source : WordNet®

abruption
     n : an instance of breaking off suddenly [syn: {breaking off}]