Inoculation

1. n. Fig.: The communication of principles, especially false principles, to the mind.
2. n. The act or art of inoculating trees or plants.
3. n. The act or practice of communicating a disease to a person in health, by inserting contagious matter in his skin or flesh.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.