anti-aliasing

noun
an·​ti-ali·​as·​ing | \ˌan-tē-ˈā-lē-ə-siŋ, -ˈāl-yə-, ˌan-ˌtī-\
variants: or antialiasing

Definition of anti-aliasing 

: a procedure used in digital graphics processing for smoothing lines and removing visual distortions

First Known Use of anti-aliasing

1978, in the meaning defined above

History and Etymology for anti-aliasing

anti- + alias entry 2 (in sense "spurious frequency generated during digital processing of an image") + -ing entry 1

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The first known use of anti-aliasing was in 1978

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