bokeh

American  

[boh-kuh, boh-key] / ˈboʊ kə, ˈboʊˌkeɪ /

noun

1. the blurry quality in the out-of-focus parts of a photograph, regarded as an aesthetic effect rendered by a particular lens or its digital simulation.

   This lens creates beautifully sharp images with delightful bokeh that glows and diffuses into the background.

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Etymology

Origin of bokeh

First recorded in 1995–2000; from Japanese boke “fuzziness, blurring,” shortening of pinboke “state of being out of focus”