ambigram

[ am-bi-gram ]

Phonetic (Standard)IPA

noun

a representation, typically of a word or number, that when viewed upside down or in mirror image forms the same word or number, or a different word or number, either coincidentally due to the natural form of the characters, as with “swims” or “dollop,” or intentionally, using calligraphy or graphic design.

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Word History and Origins

ambi- ( def ) + -gram ¹( def ); coined by U.S. cognitive scientist and physicist Douglas R. Hofstadter (born 1945) in his anthology Metamagical Themas (1985)

ambient noise ambiguity

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