Relating to or containing antimony, a brittle silvery-white chemical element often used in alloys and medicine.
From anti- (against) + monial (from antimony), formed in the 16th century when antimony compounds were used medicinally. The term 'antimony' itself comes from Medieval Latin 'antimonium,' possibly derived from Arabic 'ithmid' (eye cosmetic), though the etymology is disputed.
Antimony has been used for over 5,000 years—ancient Egyptians lined their eyes with antimony kohl, and today it's essential in flame-retardant materials for everything from your phone case to airplane seats. The word's murky origin reflects how trade and alchemy mixed knowledge from different cultures.
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