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Au,

symbol for the element goldgold,
metallic chemical element; symbol Au [Lat. aurum=shining dawn]; at. no. 79; at. wt. 196.96657; m.p. 1,064.43°C;; b.p. 2,808°C;; sp. gr. 19.32 at 20°C;; valence +1 or +3.
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AU

or

au

Abbrev. for astronomical unit.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

Au

(chemistry)

AU

(astronomy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

au

(networking)
The two character country code for Australia used in Internet domain names.

au

(filename extension)
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
The A.U. has been criticized for a lack of efficacy in the past -- it has a knack for making resolutions without actually achieving implementation.
The A.U. was inaugurated in 2002, but it has a longer history; it is a reincarnation of the Organization of African Unity, or OAU, which was cobbled together during the tumultuous 1960s.
Gadhafi envisioned the A.U. as something akin to the European Union -- eventual goals included a shared currency and a common military.
But the presence of autocrats in the A.U. and OAU has weakened its ability to serve as a legitimate pan-African authority.