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The act of pouring into a vessel; specif. (Med.), the operation of introducing a substance into a blood vessel; as, intrafusion of blood.

Being within the substance of the walls of an organ; as, intramural pregnancy.

Not capable of being transmuted or changed into another substance.

ad matter is absorbed by the living organism, and ultimately converted into the organized substance of its various tissues and organs. Dead bodies increase by apposition; living bodies by intrussusception. McKendrick.

A substance of very wide occurrence. It is found dissolved in the sap of the roots and rhizomes of many composite and other plants, 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 na…

A substance resembling inulin, found in the unripe bulbs of the dahila.

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.

A crystallized substance of the composition C4I4NH, technically tetra-iodo-pyrrol, used like iodoform.

A iodide of quinine obtained as a brown substance,. It is the base of herapathite. See Herapathite.

A peculiar substance obtained from the thyroid gland, containing from nine to ten per cent of iodine.

nd 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.

ity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances.

property which living muscle processes, of responding either to a direct stimulus of its substance, or to the stimulating influence of its nerve fibers, the response being indicated by a change of form, or contraction; contractility.

A white crystalline substance obtained by the partial reduction of isatin. [Written also isatyde.]

An orange-red crystalline substance, C8H5NO2, obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic acid, and is one important source of artificial indigo. [Written also, less properly, isatine.]

, derived from, or designating, an acid, HO.C2H4.SO3H, obtained as an oily or crystalline substance, by the action of sulphur trioxide on alcohol or ether. It is derivative of sulphuric acid.

Pertaining to the reception or the giving out of equal quantities of heat by a substance. Rankine. Isodiabatic lines or curves, a pair of lines or curves exhibiting, on a diagram of energy, the law of variation of the pressure and density of a fluid, the one during the lowering, and the other during the raising, of its…

Isomorphism between the two forms severally of two dimorphous substances.

A white, crystalline, sugarlike substance, obtained by the decomposition of certain glucosides, and intermediate in nature between the hexacid alcohols (ductile, mannite, etc.) and the glucoses.

To separate from all foreign substances; to make pure; to obtain in a free state.