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pentagraph

From Wiktionary, the free dictionary

English

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Alternative forms

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Noun

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pentagraph (plural pentagraphs)

Illustration of a pentagraph.
  1. A device used in surveying composed of four flat, straight brass rules, two of which are long and are connected by a double pivot at the end to create a V shape, and two of which are short and joined by a double pivot to create another V shape pointed away from the first, with the other ends of the short rules connected at the halfway mark of the long rules, so that the entire figure creates a parallelogram.
  2. (linguistics) A specific sequence of five letters, especially one used collectively to represent a single phoneme.
  3. (computing) A five-character sequence used to enter a single conceptual character.
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