pa·rol (p?-r?l?, p?r??l) Law n. Oral as opposed to written communication: a conveyance of land by parol.adj. Expressed or evidenced by an oral statement as opposed to a written document.[Middle English parole, from Anglo-Norman, from Vulgar Latin *paraula; see parole.]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.parol (?pær?l; p??r??l) lawn1. (Law) (formerly) the pleadings in an action when presented by word of mouth2. (Law) an oral statement; word of mouth (now only in the phrase by parol)adj (Law) a. (of a contract, lease, etc) made orally or in writing but not under sealb. expressed or given by word of mouth: parol evidence. [C15: from Old French parole speech; see parole]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014pa?rol (p??ro?l, ?pær ?l) Law. n. 1. something stated or declared. adj. 2. (of evidence) oral. [1470?80; earlier parole