|sīməl|tānēəs, |sim-, -nyəs adjective
Etymology: from (assumed) Medieval Latin simultaneus (whence simultaneitas simultaneity), from Latin simul at the same time (from similis same, similar) + Medieval Latin -taneus (from Late Latin momen taneus momentary) — more at same , momentaneous
1. : existing or occurring at the same time : coincident , concurrent
simultaneous fixing of prices of commodities affecting each other … as maize and dairy or pig products — Farmer's Weekly (South Africa)
just by twisting a dial, visitors to the U.N. General Assembly can hear simultaneous interpretations of what the speaker is saying in any of the five official languages
2. : satisfied by the same values of the variables
simultaneous equations
Synonyms: see contemporary