plex (pl?ks) n (Hairdressing & Grooming) hairdressing obsolete a braid of hairadjrelating to a multiplexvb (intr) (Biology) biology obsolete to make a plexusCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
plex
-plex
-plexsuff. Divided into a specified number of parts: fourplex.[From Latin -plex, -fold (as in duplex, twofold); see plek- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.-plex a combining form meaning ?having parts or units? of the number specified by the initial element, occurring orig. in loanwords from Latin (duplex); recent English coinages ending in -plex are probably in part new formations with this suffix and in part based on the noun complex: eightplex; Cineplex; Metroplex. [