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.
infiltration. 1. the pathological diffusion or accumulation in a tissue or cells of substances not normal to it or in amounts in excess of the normal. 2. infiltrate (2). 3. the deposition of a solution directly into tissue; see under anesthesia. adipose infiltration fatty i.