noun🔗ShareOuverture, fente, trouAn opening, gap, or hole, usually small and narrow"an aperture in a wall"Une ouverture dans un mur.gapparttechnologydevicephysicsChat with AIVocabulary GamePractice Reading
noun🔗ShareOuvertureSomething which restricts the diameter of the light path through one plane in an optical system."The camera's aperture controlled how much light entered the lens, affecting the brightness of the photograph. "L'ouverture de l'appareil photo contrôlait la quantité de lumière entrant dans l'objectif, affectant la luminosité de la photographie.technologyphysicsdeviceChat with AIVocabulary GamePractice Reading
noun🔗ShareOuverture, diamètreThe diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens."This telescope has a 100cm aperture."Ce télescope a une ouverture de 100 cm.astronomyphysicstechnologyscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareAntenne, antenne parabolique(communications) The (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."The satellite dish, with its large aperture, allowed the television station to receive a strong signal from the communication satellite. "L'antenne parabolique, avec sa grande ouverture, a permis à la station de télévision de recevoir un signal puissant du satellite de communication.technologycommunicationelectronicsspaceastronomysignaldevicemachinesystemChat with AIVocabulary GamePractice Reading
noun🔗ShareAngle au sommet(of a right circular cone) The maximum angle between the two generatrices."If the generatrix makes an angle θ to the axis, then the aperture is 2θ."Si la génératrice forme un angle θ avec l'axe, alors l'angle au sommet est de 2θ.mathtechnicalphysicsChat with AIVocabulary GamePractice Reading
