Digital Technology, Television.
[ pil-er-boks ]
/ ˈpɪl ərˌbɒks /
a technique for displaying a video recorded in portrait orientation on a wider screen by reducing its size but retaining the aspect ratio, with black bands filling the screen to the right and left of the picture (often used attributively):pillarbox format. Compare letterbox(def 2).
verb (used with object)
to display (a film or video) by using the pillarbox technique.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pillarbox
With a beating heart she went out to post the letter herself, and as it dropped into the pillarbox, she prayed softly to "God."Married|August Strindberg