A
A definition, not any particular or certain one of a class or group: a man; a chemical; a house. See more. 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. 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, 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.
