Penrose stairs

English

WOTD – 2 May 2013, 2 May 2014, 2 May 2015

Etymology

After a drawing by Lionel Penrose and Roger Penrose.

Pronunciation

  • Audio (Southern England):(file)

Noun

Penrose stairs pl (plural only)

  1. An impossible loop of endlessly ascending and descending stairs, or an optical illusion appearing to depict such a loop.
    • For quotations using this term, see Citations:Penrose stairs.

Synonyms

Translations

Further reading

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