English Explanatory Dictionary

Cardan grille

English dictionary entry

Meanings

noun
  1. A sheet of card or thin metal, etc., used in composing secret messages. The words of the message are written through a number of holes cut arbitrarily in the sheet, and the remaining paper is then filled with irrelevant words to disguise it.

Word forms

Cardan grille Cardan grilles

Etymology

Proposed in 1550 by Girolamo Cardano (1501-1576), known in French as Jérôme Cardan.

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