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 light bulb in the kitchen is much brighter; it emits 800 lumens. "Die neue Glühbirne in der Küche ist viel heller; sie strahlt 800 Lumen aus.physicsenergyunitscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareHohlraumThe cavity or channel within a tube or tubular organ."The doctor examined the lumens of the patient's intestines to look for any blockages. "Der Arzt untersuchte die Hohlräume des Darms des Patienten, um nach Verstopfungen zu suchen.anatomyorganphysiologymedicinebiologyChat with AIVocabulary GamePractice Reading
noun🔗ShareDas LumenThe cavity bounded by a plant cell wall."Under a microscope, the lumens of the plant cells looked like tiny empty compartments. "Unter dem Mikroskop sahen die Lumina der Pflanzenzellen wie winzige leere Kammern aus.plantbiologypartChat with AIVocabulary GamePractice Reading
noun🔗ShareLumenThe bore of a tube such as a hollow needle or catheter."The doctor checked the lumens of the IV catheter to make sure they weren't blocked. "Der Arzt überprüfte das Lumen des IV-Katheters, um sicherzustellen, dass es nicht blockiert war.medicineanatomyparttechnicaldeviceChat with AIVocabulary GamePractice Reading
