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v. de·con·di·tioned, de·con·di·tion·ing, de·con·di·tions
1. Psychology To cause (a conditioned response) to become extinct.
2. To cause to decline from a condition of physical fitness, as through a prolonged period of inactivity or, in astronauts, through weightlessness in space.
To lose physical fitness.
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.
to take away or cancel conditioned responses in (a person)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
de•con•di•tion(ˌdi kənˈdɪʃ ən)
1. to diminish the physical strength or stamina of; weaken.
2. to diminish or eliminate the conditioned responses or behavior patterns of.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.