How To Spell impregnation?

Correct spelling: impregnation

What is the definition of impregnation?

  1. the process of totally saturating something with a substance; "the impregnation of wood with preservative"; "the saturation of cotton with ether"

Google Ngram Viewer results for impregnation:

This graph shows how "impregnation" have occurred between 1800 and 2008 in a corpus of English books.