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From:
Historically Speaking
(Uncensored)
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Dead Head (as in chemistry)
https://idiomation.wordpress.com/2025/05/12/dead-head-as-in-chemistry/
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Tagged with:
chemistry
15th century
alchemy
1576
caput mortuum
dead head
Dead Head aka caput mortuum, is something alchemists and chemists have known about for centuries. But so have artists.
