noun🔗ShareLumenIn the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm."The new desk lamp provides 800 lumens of light, making it much brighter for studying. "La nouvelle lampe de bureau fournit 800 lumens de lumière, ce qui la rend beaucoup plus brillante pour étudier.physicsenergytechnicalunitChat with AIVocabulary GamePractice Reading
noun🔗ShareLumièreThe cavity or channel within a tube or tubular organ."The doctor inserted a small camera into the artery to examine the lumen for any blockages. "Le médecin a inséré une petite caméra dans l'artère pour examiner la lumière à la recherche d'obstructions.anatomyorganphysiologymedicineChat with AIVocabulary GamePractice Reading
noun🔗ShareLa lumièreThe cavity bounded by a plant cell wall."The plant cell's lumen, visible under the microscope, appeared as a clear space enclosed by the surrounding green cell wall. "La lumière de la cellule végétale, visible au microscope, apparaissait comme un espace clair entouré par la paroi cellulaire verte environnante.biologyplantpartstructureChat with AIVocabulary GamePractice Reading
noun🔗ShareLumière, alésageThe bore of a tube such as a hollow needle or catheter."The doctor checked the IV line to make sure the lumen wasn't blocked. "Le médecin a vérifié la ligne intraveineuse pour s'assurer que l'alésage n'était pas bloqué.medicineanatomypartdeviceChat with AIVocabulary GamePractice Reading
