Definition of iodine

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Iodine (n.) A nonmetallic element, of the halogen group, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.5. If heated, iodine volatilizes in beautiful violet vapors..

Lern More About Iodine

Periodide :: Periodide (n.) An iodide containing a higher proportion of iodine than any other iodide of the same substance or series.
Bromine :: Bromine (n.) One of the elements, related in its chemical qualities to chlorine and iodine. Atomic weight 79.8. Symbol Br. It is a deep reddish brown liquid of a very disagreeable odor, emitting a brownish vapor at the ordinary temperature. In combination it is found in minute quantities in sea water, and in many saline springs. It occurs also in the mineral bromyrite..
Heptad :: Heptad (n.) An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective..
Erythrogranulose :: Erythrogranulose (n.) A term applied by Brucke to a substance present in small amount in starch granules, colored red by iodine..
Erythrodextrin :: Erythrodextrin (n.) A dextrin which gives a red color with iodine. See Dextrin.
Chloriodic :: Chloriodic (a.) Compounded of chlorine and iodine; containing chlorine and iodine.
Erythrosin :: Erythrosin (n.) A red dyestuff obtained from fluorescein by the action of iodine.
Diiodide :: Diiodide (n.) A compound of a binary type containing two atoms of iodine; -- called also biniodide.
Oxiodic :: Oxiodic (a.) Pertaining to, or designating, certain compounds of iodine and oxygen..
Daguerreotype :: Daguerreotype (n.) An early variety of photograph, produced on a silver plate, or copper plate covered with silver, and rendered sensitive by the action of iodine, or iodine and bromine, on which, after exposure in the camera, the latent image is developed by the vapor of mercury..
Granulose :: Granulose (n.) The main constituent of the starch grain or granule, in distinction from the framework of cellulose. Unlike cellulose, it is colored blue by iodine, and is converted into dextrin and sugar by boiling acids and amylolytic ferments..
Achroodextrin :: Achroodextrin (n.) Dextrin not colorable by iodine. See Dextrin.
Absorbent :: Absorbent (n.) Any substance which absorbs and neutralizes acid fluid in the stomach and bowels, as magnesia, chalk, etc.; also a substance e. g., iodine) which acts on the absorbent vessels so as to reduce enlarged and indurated parts..
Iodhydrin :: Iodhydrin (n.) One of a series of compounds containing iodine, and analogous to the chlorhydrins..
Hydriodic :: Hydriodic (a.) Pertaining to, or derived from, hydrogen and iodine; -- said of an acid produced by the combination of these elements..
Iodous :: Iodous (a.) Pertaining to, or containing, iodine. See -ous (chemical suffix)..
Fluorine :: Fluorine (n.) A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colorles
Hydriodide :: Hydriodide (n.) A compound of hydriodic acid with a base; -- distinguished from an iodide, in which only the iodine combines with the base..
Iodism :: Iodism (n.) A morbid state produced by the use of iodine and its compounds, and characterized by palpitation, depression, and general emaciation, with a pustular eruption upon the skin..
Iodic :: Iodic (a.) to, or containing, iodine; specif., denoting those compounds in which it has a relatively high valence; as, iodic acid..
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