noun🔗Share루멘In 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. "새 책상 램프는 800 루멘의 빛을 제공하여 학습에 훨씬 더 밝게 해줍니다.physicsenergytechnicalunitChat with AIVocabulary GamePractice Reading
noun🔗Share강The 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. "의사는 막힘이 있는지 강을 검사하기 위해 작은 카메라를 동맥에 삽입했습니다.anatomyorganphysiologymedicineChat with AIVocabulary GamePractice Reading
noun🔗Share강The 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. "현미경으로 보이는 식물 세포의 강은 주변의 녹색 세포벽으로 둘러싸인 맑은 공간으로 나타났다.biologyplantpartstructureChat with AIVocabulary GamePractice Reading
noun🔗Share내강The 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. "의사는 내강이 막히지 않았는지 확인하기 위해 IV 라인을 확인했습니다.medicineanatomypartdeviceChat with AIVocabulary GamePractice Reading
