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ReadingWillow structured literacy program for Australian students

Dictionary Entry

aperture

noun

Find the meaning of the word aperture, plus dictionary definition, pronunciation, thesaurus-style synonyms, antonyms, and related vocabulary.

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Meaning

Dictionary meaning in a clear, student-friendly format.

An opening, hole, or gap, especially one that lets light pass through.

Example Sentence

The photographer adjusted the aperture to control the amount of light entering the camera lens, affecting the exposure of the image.

Usage Note

In photography, it refers to the adjustable opening in a lens that controls light exposure. More generally, it describes any opening or hole in an object, like in scientific instruments or structures.