+hidros.+ Perspiration, hyperidrosis, excessive sweating. +histology.+ Microscopic anatomy. +hyascine.+ An alkaloid of hyoscyamus and stramonium. +hydro.+ Water, hydrotherapy, treatment of disease by means of water. +hydrarthrosis.+ A serous effusion in a joint. +hyper.+ Above or over, hyperemia, the presence of an increased or overamount of blood in a part. +hyperemia.+ Excessive amount of blood. +hyperidrosis.+ Excessive sweating. +hyperplasia.+ Overgrowth of a part due to a multiplication of its elements. +hypertrophy.+ Abnormal, increased size of a part or of an organ. +hypnotic.+ Causing sleep. +hypo.+ Under, as in hypodermic, beneath the skin, or subcutaneous. +hypodermatic (hypodermic).+ Subcutaneous, applied to injections underneath the skin. +hypodermoclysis.+ The hypodermic injection of fluids to supply a lack of blood. +hysteria.+ A functional neurosis with abnormal sensations, emotions or paroxysms. +I+ +ic.+ Relating to, as in caloric, relating to temperature. +ichthyol.+ A brownish oil; principally used in the form of ammonium ichthyol as an antiseptic. +immersion.+ The plunging of a body into a liquid. +immobilization.+ The act of rendering a part immobile (immovable). +immunity.+ Freedom from risk of infection. +incubation.+ The development of an infectious disease from the infection period to the appearance of the first symptoms. +indolent.+ Inactive, sluggish. +induration.+ Hardening as of tissues. +ine.+ (Phar.) Alkaloid, as in morphine, an alkaloid. +infection.+ Invasion by pathogenic microorganisms which act injuriously upon the tissues, causing disease. +inflammation.+ A morbid condition characterized by hyperemia, pain, heat, swelling and disordered function. +infra.+ (L. below). A prefix denoting below, as infracostal, below a rib. +innervation.+ Distribution of the nerves in a part. +inoculation.+ The introduction of a specific virus into the system. +inorganic.+ Devoid of organized structure. +in situ (Latin).+ In position. +integument.+ The enveloping membrane of the body. +intercellular.+ Between the cells. +intermittant.+ Occurring at intervals. +interosseous.+ Between bone tissue. +interstices.+ Spaces, intervals, pores. +interstitial.+ Lying or placed between. +intra.+ (L. within). A prefix denoting within or inside, as intraneural, within a nerve. +intravenous.+ Within a vein. +inunction.+ Administering a drug in ointment form by rubbing into the skin. +inversion.+ The reversion of the normal position of an organ, turning inward, inside out, etc. +involucrum.+ An enveloping membrane. +iodide.+ A compound of iodin with another element, as iodide of potassium. +iodin (iodine).+ A non-metallic chemical element. +iodoform.+ A lemon yellow crystalline powder; used as an antiseptic to wounds and sores. +iritis.+ Inflammation of the iris, the anterior division of the vascular tunic of the eye. +iron.+ A metallic element.