A chemical element of atomic number 53, a violet-black crystalline solid that sublimes to a violet vapour; an essential trace element for thyroid function; formerly used as an antiseptic.
Origin
From French iode (iodine), from Greek ioeides (violet-coloured), from ion (violet flower) + eidos (form, appearance). Named by French chemist Joseph Gay-Lussac in 1813 after the violet colour of its vapour.
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🎧 Podcast 2 — Daily Use
Iodine in Conversation
Two British speakers · Real everyday dialogue
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🌟 Podcast 3 — Prompt Engineering
Iodine — AI Prompts
5 copyable & speakable prompt cards · Google UK English voices
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