Physics. the flow of a gas through a small orifice at such density that the mean distance between the molecules is large compared with the diameter of the orifice. Men who indulge themselves in writing anonymous accusations seldom limit themselves to one effusion.
For US Zip code validation Use below regular Expression. ^([0-9]{5})$. For Canada Postal code validation Use below regular Expression to validate the zip/postal code in your form. ^[ABCEGHJKLMNPRSTVXYabceghjklmnprstvxy]{1}\d{1}[A-Za-z]{1} *\d{1}[A-Za-z]{1}\d{1}$.
Best Answer: Marketing Dictionary: ZIP code. Abbreviation for Zoning Improvement Plan code established by the U.S. Postal Service to identify numerically the destination of a mailing piece for easier sorting and dispatching. The original five-digit zip code has been expanded by four digits and is now called the ZIP + 4 code (see nine-digit zip code). Business Dictionary: Zip Code. Five-digit numerical code defined by the U.S. Postal Service to simplify and expedite mail distribution.