noun
iodine
EYE-uh-dyn
noun
1
A chemical element, symbol I, used in medicine, photography, and as a nutrient needed by the thyroid gland.
"Seaweed is naturally rich in iodine."
"The nurse dabbed iodine on the wound to disinfect it."
How to Use Iodine
Learner’s notesIn plain EnglishA chemical element used as an antiseptic and essential for a healthy thyroid.
Common pairings
iodine deficiency
tincture of iodine
iodine solution
Word Forms
iodined past tense, iodines plural, iodines singular
Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “iodine”
A quick quiz — meaning, synonyms & usage
→
Fill the Gap
Can you complete this real example?
Seaweed is naturally rich in _____.
Etymology
From French iode, from Ancient Greek ioeidēs, "violet-coloured," describing the purple vapour the element gives off when heated. Named by the chemist Humphry Davy in 1814.