Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
No pronunciation record was provided for this word.
noun
An interchangeable diaphragm with an aperture for controlling the entry of light into a camera.
Definition source: English Wiktionary via Wiktextract
Topics: arts, hobbies, lifestyle, photography
No example sentence was provided for this meaning.
Synonyms: Waterhouse diaphragm
Antonyms: none provided
History
Invented by photographer John Waterhouse in 1858.
