Dictionary
one-way
Meaning
-
- Allowing movement in only one direction; unidirectional.
- Allowing travel in only one direction.
- Of a function: easy to compute for every input, but hard to invert given the image of a random input.
Etymology
From one + way. First attested in 1906 in reference to one-way tickets; 1914 in reference to one-way streets; 1940 in reference to one-way mirrors.
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