[ plek-suhs ]
See synonyms for plexus on
noun,plural plex·us·es, plex·us.
  1. a network, as of nerves or blood vessels.

  2. 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

Words Nearby plexus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use plexus in a sentence

  • In the afternoon we ran into a plexus of crevasses, and the surface was traversed by high ridges.

    The Home of the Blizzard | Douglas Mawson
  • On this side it might perhaps injure the nervous plexus, which is even more essential than the dorsal vessel.

    More Hunting Wasps | J. Henri Fabre
  • He was conscious of a vague buzzing between his ears and there was a pleasant mellow glow in the region of his solar plexus.

    Death Makes A Mistake | P.F. Costello

British Dictionary definitions for plexus


/ (ˈplɛksəs) /

nounplural -uses or -us
  1. any complex network of nerves, blood vessels, or lymphatic vessels

  2. an intricate network or arrangement

Origin of plexus

C17: New Latin, from Latin plectere to braid, plait

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012