One of the most widely accepted theories is that the name comes from the Irish word , defined by Dinneen as a pigmy, a sprite, a leprechaun; for ; the latter word Dinneen defines as a pigmy, a leprechaun; 'a kind of aqueous sprite';ref dinneen this word has also been identified as meaning half-bodied, or small-bodied.
Exfiltration is the gradual leakage of fluid through any industrial equipment, a membrane or a wall because of small opening. Exfiltration occurs when a small opening allows fluid to drain from within an assembly. The gradual deposition of leaking fluid can cause corrosion in metal structures such as boilers, heat exchangers, storage tanks and other types of equipment and machinery. Exfiltration is also known as weep.
. .an infiltration is an inadvertent administration of a nonvesicant into the surrounding tissue. [infiltration most often occurs as a result of dislodging of the iv cannula.] extravasation is defined as an inadvertent delivery of a vesicant into the tissues.vesicants cause blistering, severe tissue damage, and even necrosis if extravasated.more pathophysiology on extravasation] an oversimplification of the chemistry of an extravasation divides [vesicant] drugs into two categories, those that bind to dna and those that do not. the drugs that do not bind to dna cause immediate damage but are quickly metabolized or inactivated.