abscission

noun4

1. •
   The act or process of cutting off.

   • Not to be cured without the abscission of a member. — 1651
2. •
   The natural separation of a part at a predetermined location, such as a leaf at the base of the petiole.
3. •
   (rhetoric) A figure of speech employed when a speaker having begun to say a thing stops abruptly
4. •
   (no longer used) The state of being cut off.