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Having the same or similar origin, as organs or parts derived from the same embryonic tissue.
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.
1. (Biology) of similar origin, as parts derived from the same embryonic tissue
2. (Biology) Also: isogenic genetically uniform
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
i•sog•e•nous(aɪˈsɒdʒ ə nəs)
(of bodily organs or parts) having the same or a similar origin.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.