erasion

[ ih-rey-zhuh n, -shuh n ]
/ ɪˈreɪ ʒən, -ʃən /

noun

the act of erasing.
Surgery.
  1. the scraping away of tissue, especially of bone.
  2. Also called arthrectomy. excision of a joint.

Origin of erasion

First recorded in 1780–90; erase + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for erasion

erasion
/ (ɪˈreɪʒən) /

noun

the act of erasing; erasure
the surgical scraping away of tissue, esp of bone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012