Hypertext Webster Gateway: "plexuses"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Plexus \Plex"us\, n.; pl. L. {Plexus}, E. {Plexuses}. [L., a
twining, braid, fr. plectere, plexum, to twine, braid.]
1. (Anat.) A network of vessels, nerves, or fibers.
2. (Math.) The system of equations required for the complete
expression of the relations which exist between a set of
quantities. --Brande & C.
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