n. pl. plexus or plex·us·es
1. A structure in the form of a network, especially of nerves, blood vessels, or lymphatics: the cardiac plexus; the pelvic plexus.
2. A combination of interlaced parts; a network.
[New Latin, from Latin, braid, from past participle of plectere, to plait; see plek- in the Appendix of Indo-European roots.]
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