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1. A person in charge of maintaining or restoring valuable items, as in a museum or library.
2. A protector or guardian: "a conservator of cherished values and regular order in governing institutions" (William Greider).
3. Law One placed in charge of the property or personal affairs of an incompetent person.
con·ser′va·to′ri·al (-tôr′ē-əl) adj.
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.
(Law) law US the legal status of a person appointed by a court to protect the interests of someone, such as a child, who is unable to manage his or her own affairs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014