O

orthogonality
How accurately multi axis-system axes maintain a 90 degree relationship.

OS
Abbreviation for Operating System

OSI
Abbreviation for Open Systems Interconnection (model)

outline font
A font that consists of mathematical equations that describe what each letter shape (glyph) should look like. Outline fonts can be printed at any size and at any resolution without “jaggies” or loss of quality. TrueType fonts are typical examples of outline fonts.

outside focus
That part of an image forming optical system where light rays diverge from the focus

overprint
The opposite of knockout: a shape of object (e.g. text or a logo) that is printed on top of background colours or objects that it covers.

overset
Type set in excess of available space.

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One Comment to “O”

  1. Alex Hinchey, on May 27th, 2008 at 7:59 am Said:

    An orphan is actually the first or last line of a paragraph on it’s own at the beginning or end of a column of text. The definition you have here is of a widow

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