https://mybookjoy.com/2023/06/14/word-origins-is-scientist-a-womanly-word/
This person did a good write up of this claim
Spoiler alert. The social media "fact" is completely made up.
Behind many famous scientists there was a great woman whose work earned them the Nobel Prize.
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That would imply that a make scientist would be a scientor, which sounds equally cool!
https://www.smithsonianmag.com/science-nature/unheralded-women-scientists-finally-getting-their-due-180973082/
Other scientist woman got famous in other context, like Mayim Bialik
One of her publications https://www.proquest.com/docview/304879069
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Not even in the movie Oppenheimer they rise much the influence of Lisa Meitner
It's Man of Science, not male scientist. It's right there in the post.