Category: Three-letter acronym disambiguations See Cartesian coordinate system or Coordinates (elementary mathematics) for a more elementary introduction to this topic. ... In common usage, the dimensions (from Latin measured out) of an object are the parameters or measurements required to define its shape and size, that is, usually, its height, width, and length. ... Color is an important part of the visual arts. ... In the study of the perception of color, one of the first mathematically defined color spaces was the CIE XYZ color space (also known as CIE 1931 color space), created by the International Commission on Illumination (CIE) in 1931. ... XYZ was one of the first supergroups of the 1980s. ... The 1980s in its most obvious sense refers to the decade between 1980 and 1989, however in a pop cultural sense The Eighties sometimes includes at least some aspects of 1979 and 1990, or more or less the era between the end of the Disco era of the 1970s and... The XYZ Affair is a diplomatic scandal that lasted from March of 1797 to 1800. ... 1797 was a common year starting on Sunday (see link for calendar). ... With over 350,000 CPA members (in 2005,)the American Institute of Certified Public Accountants (AICPA) is the largest professional organization of accountants in the United States of America. ... Your fly is open is a phrase which indicates that ones pants or trousers zipper is down and that their underwear may be exposed. ... The TLA (three-letter acronym or three-letter abbreviation) is the most popular type of abbreviation in technical terminology, and is also very common in general language. ...