D defs.my
Entry 3 senses Webster, 1913

Plexus

/plĕk'-səs/ · Plex·us · IPA /ˈplɛk.səs/
01 n. A network of vessels, nerves, or fibers.
pl. Plexus, Plexuses ((#))
  1. 1.
    A network of vessels, nerves, or fibers.(Anat.)
  2. 2.
    The system of equations required for the complete expression of the relations which exist between a set of quantities.(Math.)
  3. 3.
    A network; an intricate or interwoven combination of elements or parts in a coherent structure.
    “In the perception of a tree the reference to an object is circumscribed and directed by a plexus of visual and other presentations.” — G. F. Stout.