Vocabulary : Iodoform to Ion

Iodoform : A yellow, crystalline, volatile substance, CI3H, having an offensive odor and sweetish taste, and analogous to chloroform. It is used in medicine as a healing and antiseptic dressing for wounds and sores.
Iodoformogen : A light powder used as a substitute for iodoform. It is a compound of iodoform and albumin.
Iodol : A crystallized substance of the composition C4I4NH, technically tetra-iodo-pyrrol, used like iodoform.
Iodoquinine : A iodide of quinine obtained as a brown substance,. It is the base of herapathite. See Herapathite.
Iodothyrin : A peculiar substance obtained from the thyroid gland, containing from nine to ten per cent of iodine.

Iodous : Pertaining to, or containing, iodine. See -ous (chemical suffix).
Ioduret : Iodide.
Iodyrite : Silver iodide, a mineral of a yellowish color.
Iolite : A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite.
Ion : One of the elements which appear at the respective poles when a body is subjected to electro-chemical decomposition. Cf. Anion, Cation. ;; One of the electrified particles into which, according to the electrolytic dissociation theory, the molecules of electrolytes are divided by water and other solvents. An ion consists of one or more atoms and carries a unit charge of electricity, 3.4 x 10-10 electrostatic units, or a multiple of this. Those which are positively electrified (hydrogen and the metals) are called cations; negative ions (hydroxyl and acidic atoms or groups) are called anions. ;; One of the small electrified particles into which the molecules of a gas are broken up under the action of the electric current, of ultraviolet and certain other rays, and of high temperatures. To the properties and behavior of ions the phenomena of the electric discharge through rarefied gases and many other important effects are ascribed. At low pressures the negative ions appear to be electrons; the positive ions, at