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say it: SIM-pleks
simplex is an adjective meaning "allowing communication in only one direction at a time, or in telegraphy allowing only one message over a line at a time". It is pronounced /ˈsɪmˌplɛks/ — SIM-pleks. It carries 2 recorded senses.
allowing communication in only one direction at a time, or in telegraphy allowing only one message over a line at a time
“simplex system”
telecommunication
having only one part or element
“a simplex word has no affixes and is not part of a compound--like `boy' compared with `boyish' or `house' compared with `houseboat'”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for simplex come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.