INDIUM n.
pectrum of two indigo blue lines; hence, its name. In appearance it resembles zinc, being white or lead gray, soft, malleable and easily fusible, but in its chemical relation it resembles aluminium or gallium. Symbol In. Atomic weight, 113.4.
INDOL n.
A white, crystalline substance, C8H7N, obtained from blue indigo, and almost all indigo derivatives, by a process of reduction. It is also formed from albuminous matter, together with skatol, by putrefaction, and by fusion with caustic potash, and is present in human excrement, as well as in the intestinal canal of som…
INFUSORIAL a.
ng, Infusoria; as, infusorial earth. Infusorial earth (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of the shells of the microscopic plants called diatoms. It is used in polishing powder, and in the manufacture of dynamite.
INOSITE n.
A white crystalline substance with a sweet taste, found in certain animal tissues and fluids, particularly in the muscles of the heart and lungs, also in some plants, as in unripe pease, beans, potato sprouts, etc. Called also phaseomannite.
INTENTION n.
rmed by the mind; an abstract notion; especially, a classified notion, as species, genus, whiteness. -- To heal by the first intention (Surg.), to cicatrize, as a wound, without suppuration. -- To heal by the second intention (Surg.), to unite after suppuration.
INTUITION n.
m "mediate" knowledge, as in reasoning; as, the mind knows by intuition that black is not white, that a circle is not a square, that three are more than two, etc.; quick or ready insight or apprehension. Sagacity and a nameless something more, -- let us call it intuition. Hawthorne.
INULIN n.
ants, as Inula, Helianthus, Campanula, etc., and is extracted by solution as a tasteless, white, semicrystalline substance, resembling starch, with which it is isomeric. It is intermediate in nature between starch and sugar. Called also dahlin, helenin, alantin, etc.
IRIDIUM n.
re metallic element, of the same group as platinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osmium, it is the heaviest substance known, its specific gravity being 22.4. Symbol Ir. Atomic weight 192.5.
IRISH a.
ame made into a blanc mange. -- Irish poplin. See Poplin. -- Irish potato, the ordinary white potato, so called because it is a favorite article of food in Ireland. -- Irish reef, or Irishman's reef (Naut.), the head of a sail tied up. -- Irish stew, meat, potatoes, and onions, cut in small pieces and stewed.…
IRON n. 2 definitions
dark brown, from oxidation or impurity, but when pure, or an fresh surface, is a gray or white metal. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents. Symbol Fe (Latin Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is supe…