flexagon

noun
flex·​a·​gon | \ ˈfleksəˌgän\
plural -s

Definition of flexagon

: a folded paper figure that can be flexed along its folds to expose various arrangements of its faces

First Known Use of flexagon

1954, in the meaning defined above

History and Etymology for flexagon

flex entry 1 + -agon (as in hexagon)

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