Definition of plexus in English:



  • 1A network of nerves or vessels in the body.

    • ‘The femoral, lateral cutaneous, and obturator nerves exit from the lumbar plexus.’
    • ‘The doubled veins may unite in front and behind the artery to form a plexus around that vessel.’
    • ‘The myenteric plexus of these appendix specimens had even thicker nerve bundles connecting an increased number of ganglion cells.’
    • ‘Around the abdominal aorta, the aortic plexus of nerves can be identified.’
    • ‘This nerve is considered by some authors as the most variable nerve of the lumbar plexus.’
    web, criss-cross, grid, lattice, net, matrix, mesh, webbing, tracery, trellis
    View synonyms
    1. 1.1An intricate network or web-like formation.


Late 17th century: from Latin, literally plaited formation, past participle of plectere to plait.