Definition of aperture
- entered the cave through a narrow aperture
We entered the cave through a narrow aperture.
The photograph was taken using a fast shutter speed and a large aperture.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aperture.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a hole or small opening in something
: an opening that controls the amount of light that passes through a lens (such as a camera lens)
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