noun🔗ShareIrisA plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant))."My grandmother loves to paint the irises that bloom in her garden every spring. "Ma grand-mère adore peindre les iris qui fleurissent dans son jardin chaque printemps.plantnaturebiologyenvironmentagricultureChat with AIVocabulary GamePractice Reading
noun🔗ShareIrisThe contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye (See Iris (anatomy))."The doctor used a bright light to examine the patient's irises, checking how they responded to changes in brightness. "Le médecin a utilisé une lumière vive pour examiner les iris du patient, vérifiant leur réaction aux changements de luminosité.anatomyorganbodyphysiologyChat with AIVocabulary GamePractice Reading
noun🔗ShareDiaphragme, irisA diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens."The photographer adjusted the camera's irises to let in more light for the indoor shot. "Le photographe a ajusté le diaphragme de l'appareil photo pour laisser entrer plus de lumière pour la prise de vue en intérieur.technologydevicemachinepartChat with AIVocabulary GamePractice Reading
noun🔗ShareArc-en-ciel, réfraction colorée de la lumièreA rainbow, or other colourful refraction of light."After the rain, irises appeared on the mist, as the sun shone through the water droplets. "Après la pluie, des arcs-en-ciel sont apparus sur la brume, alors que le soleil brillait à travers les gouttelettes d'eau.phenomenaphysicsnaturecolorChat with AIVocabulary GamePractice Reading
noun🔗ShareOuvertures, diaphragmesA constricted opening in the path inside a waveguide, used to form a resonator."The engineer carefully adjusted the irises within the microwave waveguide to fine-tune the resonant frequency. "L'ingénieur a soigneusement ajusté les ouvertures à l'intérieur du guide d'ondes hyperfréquences pour affiner la fréquence de résonance.technologyphysicselectronicsdevicesignalpartChat with AIVocabulary GamePractice Reading
noun🔗ShareIrisThe inner circle of an oscillated color spot."The shimmering soap bubble displayed irises as it floated, colorful rings spreading from the center of the light spot. "La bulle de savon scintillante affichait des iris en flottant, des anneaux colorés s'étendant du centre du point lumineux.anatomyorganpartphysiologyappearancebodycolorChat with AIVocabulary GamePractice Reading
verb🔗ShareS'ouvrir, se fermer(of an aperture, lens or door) To open or close in the manner of an iris."As the security camera detected movement, its lens began to iris, slowly opening to capture a clearer image. "Lorsque la caméra de sécurité a détecté un mouvement, son objectif a commencé à s'ouvrir, s'ouvrant lentement pour capturer une image plus claire.technicalmachineactionpartstructuretechnologyChat with AIVocabulary GamePractice Reading
