A
A definition, not any particular or certain one of a class or group: a man; a chemical; a house. See more. a. 1. Used in the dividend column of stock transaction tables in newspapers to indicate a cash payment in addition to regular dividends during the year: 2.75a. 2. Used in money market mutual fund transaction tables in newspapers to indicate a yield that may include capital gains and losses as well as current interest: AmCap Reserv a.
A battery, a vacuum tube filament type battery; A battery (size), a standard battery size Anode, an electrode; A, historical symbol for chemical element argon, currently Ar; The center of a hexagonal face of the Brillouin zone of a hexagonal lattice, in physics; Arts and media Books "A", a major poem by twentieth century author Louis Zukofsky; a, A Novel, by twentieth century artist Andy Warhol A, or a, is the first letter and the first vowel of the modern English alphabet and the ISO basic Latin alphabet. Its name in English is a (pronounced / ˈ eɪ /), plural aes. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar.
