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  2. At sign - Wikipedia

    en.wikipedia.org/wiki/At_sign

    The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), now seen more widely in email addresses and social media platform handles. It is normally read aloud as "at" and is also commonly called the at symbol , commercial at , or address sign .

  3. Road signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_the_United...

    Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings.

  4. WAI-ARIA - Wikipedia

    en.wikipedia.org/wiki/WAI-ARIA

    Web Accessibility Initiative – Accessible Rich Internet Applications ( WAI-ARIA) is a technical specification published by the World Wide Web Consortium (W3C) that specifies how to increase the accessibility of web pages, in particular, dynamic content, and user interface components developed with Ajax, HTML, JavaScript, and related technologies.

  5. GNU Emacs - Wikipedia

    en.wikipedia.org/wiki/GNU_Emacs

    XEmacs 21.5 on GNU/Linux. Lucid Emacs, based on an early version of GNU Emacs 19, was developed beginning in 1991 by Jamie Zawinski and others at Lucid Inc. One of the best-known forks in free software development occurred when the codebases of the two Emacs versions diverged and the separate development teams ceased efforts to merge them back into a single program.

  6. XFA - Wikipedia

    en.wikipedia.org/wiki/XFA

    XFA forms are synonymous with SmartForms in the Australian government. Static and dynamic forms. XFA defines static forms (since XFA 2.0 and before) and dynamic forms (since XFA 2.1 or 2.2). In a static form the form’s appearance and layout is fixed, regardless of the field content. Any unfilled fields are present in the form.

  7. Atom (web standard) - Wikipedia

    en.wikipedia.org/wiki/Atom_(Web_standard)

    The Atom Syndication Format is an XML language used for web feeds, while the Atom Publishing Protocol ( AtomPub or APP) is a simple HTTP -based protocol for creating and updating web resources. [1] Web feeds allow software programs to check for updates published on a website. To provide a web feed, the site owner may use specialized software ...

  8. Dollar sign - Wikipedia

    en.wikipedia.org/wiki/Dollar_sign

    The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ( $ or depending on typeface ), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso". The explicitly double-barred sign is called cifrão in ...

  9. Omega-3 fatty acid - Wikipedia

    en.wikipedia.org/wiki/Omega-3_fatty_acid

    An omega−3 fatty acid is a fatty acid with multiple double bonds, where the first double bond is between the third and fourth carbon atoms from the end of the carbon atom chain. "Short-chain" omega−3 fatty acids have a chain of 18 carbon atoms or less, while "long-chain" omega−3 fatty acids have a chain of 20 or more.