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1. Inoculation with a vaccine made from microorganisms obtained from the recipient's own body.
2. An infection caused by a disease that has spread from a different part of the body.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Medicine) the inoculation of microorganisms (esp viruses) from one part of the body into another, usually in the form of a vaccine
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
au•to•in•oc•u•la•tion(ˌɔ toʊ ɪˌnɒk yəˈleɪ ʃən)
inoculation with a vaccine prepared from a pathogen within a person's own body.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.