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An aperture is an opening or a hole that lets something through, especially light. You'll meet this word most often in photography — the camera's aperture is the hole that opens and closes to let more or less light onto the sensor or film; a bigger aperture lets in more light and creates a blurrier background.
光圈（攝影用語）；也可泛指「開口、孔」
組成From Latin 'aperire' (to open).
同家族的字
- overtprobably shares the same Latin root 'aperire' (to open), by way of Old French
原始詞典資料5 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
aperturenoun/ˈap.ə.t͡ʃə/
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A small or narrow opening, gap, slit, or hole.
- an aperture in a wall
- Were the larynx of the little creature like that of the parent, the milk might—probably would—enter the windpipe and cause suffocation : but the fœtal larynx is cone-shaped, with the opening at the apex, which projects, as in the whale-tribe, into the back aperture of the nostrils, where it is closely embraced by muscles of the ‘soft palate.’
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engineeringnatural-sciencesopticsA hole which restricts the diameter of the lightpath through one plane in an optical system.
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artsastronomyengineeringA hole which restricts the diameter of the lightpath through one plane in an optical system.
- This telescope has a 100 cm aperture.
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communicationcommunicationsThe (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.
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raremathematicssciencesThe maximum angle between the two generatrices.
- If the generatrix makes an angle θ to the axis, then the aperture is 2θ.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。