plexus

UK: /ˈplɛksəs/ US: /ˈplɛksəs/ ,(plek′səs)

Inflections of 'plexus' (n):

plexuses

npl

plexus

npl

WordReference Random House Learner's Dictionary of American English © 2025

plex•us /ˈplɛksəs/   n. [countable] , pl. -us•es, -us. 

1. Anatomy a network, as of nerves or blood vessels:
   the solar plexus.
2. any complicated structure containing an intricate network of parts:
   the plexus of international relations.

See -plex-.

WordReference Random House Unabridged Dictionary of American English © 2025

plex•us  (plek′səs), n., pl. -us•es, -us. 

1. Anatomy a network, as of nerves or blood vessels.
2. any complex structure containing an intricate network of parts:
   the plexus of international relations.

• Neo-Latin: an interweaving, twining = Latin plect(ere) to plait, twine + -tus suffix of verb, verbal action
• 1675–85

Collins Concise English Dictionary © HarperCollins Publishers::

plexus / ˈplɛksəs/ noun ( -uses, -us)

1. any complex network of nerves, blood vessels, or lymphatic vessels
2. an intricate network or arrangement

Etymology: 17th Century: New Latin, from Latin plectere to braid, plait