Logo

Logo turned up in English in 1937, probably a shortening of logogram, meaning a "sign or character representing a word" (1820), derived from Greek logos "word" + gram "what is written." A logogram is a single written character (a glyph) which represents a complete grammatical word or morpheme.

The term logo has several meanings:

• Used synonymously with the word logotype (q.v.), it is a visual device that graphically defines a (usually corporate) identity, incorporating an emblem or symbol, a name, acronym or part of a name often in a unique font, or both, protected by copyright. See under logotype. See also trademark.

• The Logo programming language.

• Symbols of Unicode, used for general purposes
  • The skull-and-crossbones poison symbol (Unicode U+2620, ☠)
  • The three-bladed radiation symbol (Unicode U+2622, ☢)
  • The six-horned biohazard symbol (Unicode U+2623, ☣)
  • The 'i' symbol for information points (Unicode U+2139, ℹ)
  • The 'male' symbol (Unicode U+2642, ♂)
  • The 'female' symbol (Unicode U+2640, ♀)

• Icons
• "No Logo"