iodine

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
noun a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic

From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.

It was an invigorating sea breeze, charged with iodine. — Twenty Thousand Leagues under the Sea, Jules Verne
You have got some iodine from the doctor, have you not?" — With Kitchener in the Soudan: A Story of Atbara and Omdurman, G. A. (George Alfred) Henty
It had to be a sea breeze, life-giving and charged with iodine! — Twenty Thousand Leagues Under the Seas: An Underwater Tour of the World, Jules Verne

iodin, I, atomic number 53

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