American Heritage® Dictionary of the English Language, Fourth Edition
- n. A photographic exposure made by leaving the shutter open a relatively long time, generally a second or more.
- n. An image so made.
- n. photography An exposure made by leaving a camera's shutter open for a period greater than a fraction of a second; an image so obtained.
- n. exposure of a film for a relatively long time (more than half a second)
- n. a photograph produced with a relatively long exposure time
“I set my camera on the rim of a large horse-trough, and took this time exposure to eliminate the heavy street traffic.”
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