The story
From philosopher (“(obsolete) an alchemist”) + -’s + wool.
Etymology from Wiktionary, CC BY-SA 4.0.
philosopher's wool
phil·o·soph·er’s woolToday it means: Zinc oxide (chemical formula ZnO) as a white flocculent powder. Full definition →
Today it means: Zinc oxide (chemical formula ZnO) as a white flocculent powder. Full definition →
From philosopher (“(obsolete) an alchemist”) + -’s + wool.
Etymology from Wiktionary, CC BY-SA 4.0.