aperture-priority

[ ap-er-cher-prahy-or-i-tee, -awr- ]
/ ˈæp ər tʃər praɪˌɒr ɪ ti, -ˌɔr- /

adjective Photography.

of or relating to a semiautomatic exposure system in which the photographer presets the aperture and the camera selects the shutter speed.

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seclusion
Also ap·er·ture-pre·ferred [ap-er-cher-pri-furd]. /ˈæp ər tʃər prɪˌfɜrd/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for aperture-priority

aperture priority

noun

photog an automatic exposure system in which the photographer selects the aperture and the camera then automatically sets the correct shutter speedCompare shutter priority
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012