Main Entry: plex·us

Pronunciation: \ˈplek-səs\

Function: noun

Inflected Form(s): plural plex·us·es \-sə-səz\

Etymology: New Latin, from Latin plectere to braid — more at ply

Date: 1682

1 : a network of anastomosing or interlacing blood vessels or nerves
2 : an interwoven combination of parts or elements in a structure or system