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

Homology :: Homology (n.) The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, CH4, ethane, C2H6, propane, C3H8, etc., all members of the paraffin series. In an extended sense, the term is applied to the relation between chemical elements of the same group; as, chlorine, bromine, and iodine are said
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..
Erythrodextrin :: Erythrodextrin (n.) A dextrin which gives a red color with iodine. See Dextrin.
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
Liquefacient :: Liquefacient (n.) An agent, as mercury, iodine, etc., which promotes the liquefying processes of the system, and increases the secretions..
Iodic :: Iodic (a.) to, or containing, iodine; specif., denoting those compounds in which it has a relatively high valence; as, iodic acid..
Periodic :: Periodic (a.) Pertaining to, derived from, or designating, the highest oxygen acid (HIO/) of iodine..
Chloriodic :: Chloriodic (a.) Compounded of chlorine and iodine; containing chlorine and iodine.
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..
Periodide :: Periodide (n.) An iodide containing a higher proportion of iodine than any other iodide of the same substance or series.
Achroodextrin :: Achroodextrin (n.) Dextrin not colorable by iodine. See Dextrin.
Iodhydrin :: Iodhydrin (n.) One of a series of compounds containing iodine, and analogous to the chlorhydrins..
Chloriodine :: Chloriodine (n.) A compound of chlorine and iodine.
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..
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..
Kelp :: Kelp (n.) The calcined ashes of seaweed, -- formerly much used in the manufacture of glass, now used in the manufacture of iodine..
Iodize :: Iodize (v. t.) To treat or impregnate with iodine or its compounds; as, to iodize a plate for photography..
Hydriodide :: Hydriodide (n.) A compound of hydriodic acid with a base; -- distinguished from an iodide, in which only the iodine combines with the base..
Acidifier :: Acidifier (n.) A simple or compound principle, whose presence is necessary to produce acidity, as oxygen, chlorine, bromine, iodine, etc..
Iodide :: Iodide (n.) A binary compound of iodine, or one which may be regarded as binary; as, potassium iodide..
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