1) Cardiology journal 2) French word used in English 3) Insertion 4) Introduction 5) Intromission 
In physiology, perfusion is the process of a body delivering blood to a capillary bed in its biological tissue. The word is derived from the French verb `perfuser` meaning to `pour over or through.` Tests verifying that adequate perfusion exists are a part of a patient`s assessment process that are performed by medical or emergency personnel....
• (n.) The act of perfusing.
1. the act of pouring over or through, especially the passage of a fluid through the vessels of a specific organ. 2. a liquid poured over or through an organ or tissue. 
Bathing an organ or tissue with a fluid. In regional perfusion, a specific area of the body (usually an arm or a leg) receives high doses of anticancer drugs through a blood vessel. Such a procedure is performed to treat cancer that has not spread.
1. <physiology> The act of pouring over or through, especially the passage of a fluid through the vessels of a specific organ. ... 2. A liquid poured over or through an organ or tissue. ... (18 Nov 1997) ... 
(pәr-fu´zhәn) the act of pouring through or over; especially the passage of a fluid through the vessels of a specific organ. a liquid poured through or over an organ or tissue. tissue perfusion the circulation of blood through the vascular bed of tissue.
Per·fu'sion noun [ Latin perfusio .] The act of perfusing. 
Type: Term Pronunciation: per-fyū′zhŭn Definitions: 1. The act of perfusing. 2. The flow of blood or other perfusate per unit volume of tissue, as in ventilation:perfusion ratio.
Perfusion: A chemotherapy technique that may be used when melanoma occurs on an arm or leg. The flow of blood to and from the limb is stopped for a while with a tourniquet, and anticancer drugs are put directly into the blood of the limb. This allows the patient to receive a high dose of drugs in the area where the melanoma occurred.
The passing of fluids through blood vessels of organs and tissue
[n] - pumping a liquid into an organ or tissue (especially by way of blood vessels)
noun pumping a liquid into an organ or tissue (especially by way of blood vessels)