noun, plural plex·us·es, plex·us.
a network, as of nerves or blood vessels.
any complex structure containing an intricate network of parts: the plexus of international relations.
Origin of plexus
1675–85; < New Latin: an interweaving, twining, equivalent to Latin plect(ere) to plait, twine + -tus suffix of v. action
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for plexus
Historical Examples of plexus
British Dictionary definitions for plexus
noun plural -uses or -us
any complex network of nerves, blood vessels, or lymphatic vessels
an intricate network or arrangement
Word Origin for plexus
C17: New Latin, from Latin plectere to braid, plait
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for plexus
1680s, Modern Latin, literally "braid, network," noun use of past participle of Latin plectere "to twine, braid, fold" (see complex (adj.)); used of a network, such as solar plexus "network of nerves in the abdomen" (see solar). Related: Plexal.
Online Etymology Dictionary, © 2010 Douglas Harper
n. pl. plexus
A structure in the form of a network, especially of nerves, blood vessels, or lymphatics.
A combination of interlaced parts; a network.
The American Heritage® Stedman's Medical Dictionary
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