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“apertures”
aperture (s), apertures (pl) (nouns)
1. An opening; such as, a hole, a gap, or a slit.
2. A fixed or an adjustable opening in an optical instrument; such as, a camera or a telescope, which limits the amount of light passing through a lens or onto a mirror.
2. A fixed or an adjustable opening in an optical instrument; such as, a camera or a telescope, which limits the amount of light passing through a lens or onto a mirror.
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apert-, aperi- +
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