dissepiment

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dis·sep·i·ment

 (dĭ-sĕp′ə-mənt)
n.
Biology A partition dividing a part or organ; a septum.

[Latin dissaepīmentum, partition, from dissaepīre, to divide : dis-, dis- + saepīre, hedge off (from saepēs, hedge).]

dis·sep′i·men′tal (-mĕn′tl) 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.

dissepiment

(dɪˈsɛpɪmənt)
n
(Biology) biology a dividing partition or membrane, such as that between the chambers of a syncarpous ovary
[C18: from Late Latin dissaepīmentum, from dis-1 + saepīmentum hedge, from saepīre to enclose]
disˌsepiˈmental adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sep•tum

(ˈsɛp təm)

n., pl. -ta (-tə).
a dividing wall, membrane, or the like, in a plant or animal structure; dissepiment.
[1710–20; < New Latin; Latin saeptum enclosure]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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