Definition of bokeh
: the blurred quality or effect seen in the out-of-focus portion of a photograph taken with a narrow depth of field <Good bokeh is smooth and pleasing, whereas bad bokeh produces a jagged and discordant effect. … The quality of bokeh is largely dependent on the construction of the lens. For this reason, lenses that provide high-quality bokeh are prized. — Harold Davis>
Origin and Etymology of bokeh
borrowed from Japanese boke “blur, haziness”
First Known Use: 2000
Seen and Heard
What made you want to look up bokeh? Please tell us where you read or heard it (including the quote, if possible).