say it: kuhn-tem-pur-AY-nee-uhs
contemporaneous is an adjective meaning "occurring in the same period of time". It carries 2 recorded senses.
occurring in the same period of time
“a rise in interest rates is often contemporaneous with an increase in inflation”
“the composer Salieri was contemporary with Mozart”
of the same period
Definitions, synonyms and semantic relations for contemporaneous 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.