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Meaning of -plex

-plex

Pronunciation: [key]
  1. a combining form meaning “having parts or units” of the number specified by the initial element, occurring originally in loanwords from Latin (duplex; quadruplex); recent English coinages ending in -plex, esp. denoting structures with a given number of dwelling units, are probably in part new formations with this suffix and in part based on the noun complex: fourplex; eightplex; Cineplex; Metroplex.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.