Iodine Definition
īə-dīn, -dĭn, -dēn
noun
A nonmetallic chemical element, one of the halogens, consisting of grayish-black crystals that volatilize into a violet-colored vapor: used as an antiseptic, in the manufacture of dyes, in photography, etc.: symbol, I; at. no. 53: a radioactive isotope (iodine-131) is used esp. in the diagnosis and treatment of thyroid function, in internal radiation therapy, and as a tracer.
Webster's New World
Tincture of iodine, used as an antiseptic.
Webster's New World
A lustrous, purple-black, corrosive, poisonous halogen occurring as a diatomic molecule, I2 , that easily sublimes to give a purple gas and is a trace element essential for proper thyroid function. Radioactive isotopes, especially I-131, are used as medical tracers and in thyroid disease diagnosis and therapy. Iodine compounds are used as germicides, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.7°C; boiling point 184.4°C; density of gas 11.27 grams per liter; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7.
American Heritage
An antiseptic preparation containing iodine in solution, used to treat wounds.
American Heritage
verb
To treat with iodine.
Wiktionary
Other Word Forms of Iodine
Noun
Singular:
iodine
Plural:
iodinesOrigin of Iodine
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French iode iodine (from Greek ioeidēs violet-colored) (ion violet) (Latin viola viola2) (-oeidēs -oid) –ine
From American Heritage Dictionary of the English Language, 5th Edition
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French iode iodine (from Greek ioeidēs violet-colored) (ion violet) (Latin viola viola2) (-oeidēs -oid) –ine
From American Heritage Dictionary of the English Language, 5th Edition
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From French iode, from Ancient Greek ἰοειδής (ioeidēs, “violet”) + -ine
From Wiktionary
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