IODINE Definition & Meaning

iodine

[ ahy-uh-dahyn, -din; in Chemistry also ahy-uh-deen ]

Phonetic (Standard)IPA

noun

Chemistry.

a nonmetallic halogen element occurring at ordinary temperatures as a grayish-black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic. : I; : 126.904; : 53; : (solid) 4.93 at 20°C.

iodine

/ ˈ��ɪəˌ�徱ː�� /

noun

a bluish-black element of the halogen group that sublimates into a violet irritating gas. Its compounds are used in medicine and photography and in dyes. The radioisotope iodine-131 ( radioiodine ), with a half-life of 8 days, is used in the diagnosis and treatment of thyroid disease. Symbol: I; atomic no: 53; atomic wt: 126.90447; valency: 1, 3, 5, or 7; relative density: 4.93; melting pt: 113.5°C; boiling pt: 184.35°C

iodine

/ ī′ə-��ī��′ /

A shiny, grayish-black element of the halogen group. It is corrosive and poisonous and occurs in very small amounts in nature except for seaweed, in which it is abundant. Iodine compounds are used in medicine, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.5°C; boiling point 184.35°C; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7.
See Periodic Table

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�y��vlog History and Origins

Origin of iodine¹

First recorded in 1814; from French iode + -ine ²( def 2 ); introduced by H. Davy. Ultimately from Greek īṓdŧ��, originally “rust-colored”, but by folk etymology taken as í(�ǲ�) “violet” + -ō��ŧ�� noun suffix; -ode ¹( def )

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�y��vlog History and Origins

Origin of iodine¹

C19: from French iode, from Greek ��ō��ŧ�� rust-coloured, but taken to mean violet-coloured, through a mistaken derivation from ion violet

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Example Sentences

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Ms Damari was also shot in the leg, and previously said she had only received an out-of-date bottle of iodine to treat her wounds while in captivity.

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The study published in The American Journal of Clinical Nutrition checked the amounts of choline and iodine in nonprescription and prescription prenatal vitamins.

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Their checklist also includes iodine tablets, as well as easy-to-cook food, pet food and a backup power supply.

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Famine and food shortages in Gaza mean pregnant women are not getting enough folate, iron, vitamin B12 and iodine.

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Due to the high iodine content in many seaweed species, seaweed consumption could exacerbate thyroid conditions or interfere with thyroid medications.

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