D defs.my
Entry 2 senses Webster, 1913

Replacement

/(-ment)/ · Re·place·ment · IPA /ɹɪˈpleɪsmənt/
01 n. The act of replacing.
  1. 1.
    The act of replacing.
  2. 2.
    The removal of an edge or an angle by one or more planes.(Crystallog.)