Poseidonius definitions

Poseidonius

1) Ancient Greek engineer
Found on https://www.crosswordclues.com/clue/poseidonius

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Poseidonius

also spelled Posidonius Greek philosopher, considered the most learned man of his time and, possibly, of the entire Stoic school.[9 related articles]
Found on http://www.britannica.com/eb/a-z/p/99

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