A person who is devoted to or specializes in conducting experiments; someone who believes in the value of experimental methods.
From experiment + -arian (one who practices or is devoted to something). Similar to 'librarian' or 'vegetarian,' the -arian suffix denotes a person with a specific practice or belief. This rare term emerged in scientific writing to describe experimental philosophy practitioners.
In the 1600s, the Royal Society was full of 'experimentarians' who were basically the rebels of science—they wanted to *prove* things by testing them instead of just quoting ancient authorities. It was revolutionary!
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