Dictionary

iodine

noun, io·dine often attributive \ˈī-ə-ˌdīn, -dən, -ˌdēn\

: a chemical element that is used especially in medicine and photography

Full Definition of IODINE

1
:  a nonmetallic halogen element obtained usually as heavy shining blackish-gray crystals and used especially in medicine, photography, and analysis — see element table
2
:  a tincture of iodine used especially as a topical antiseptic
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Origin of IODINE

French iode, from Greek ioeidēs violet colored, from ion violet
First Known Use: 1814
IODINE Defined for Kids

iodine

noun io·dine \ˈī-ə-ˌdīn, -dən\

Definition of IODINE for Kids

1
:  a chemical element found in seawater and seaweeds and used especially in medicine and photography
2
:  a solution of iodine in alcohol used to kill germs
Medical Dictionary

iodine

noun , io·dine often attrib \ˈī-ə-ˌdīn, -əd-ən, -ə-ˌdēn\

Medical Definition of IODINE

1
:  a nonmetallic halogen element obtained usually as heavy shining blackish gray crystals and used especially in medicine (as in antisepsis and in the treatment of goiter and cretinism) and in photography and chemical analysis—symbol I; see element table
2
:  a tincture of iodine used especially as a topical antiseptic

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