noun🔗Share星云 A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes)."The telescope showed a beautiful nebula glowing with different colors. "望远镜显示出一个美丽的星云，它发出不同颜色的光芒。spaceastronomyphysicssciencephenomenaChat with AIVocabulary GamePractice Reading
noun🔗Share角膜白斑，角膜云翳 A white spot or slight opacity of the cornea."The doctor noticed a small nebula in Sarah's eye, which might be a minor corneal issue. "医生注意到莎拉的眼睛里有个小小的角膜云翳，这可能是一个轻微的角膜问题。medicinebodyanatomyorganChat with AIVocabulary GamePractice Reading
noun🔗Share尿浊，尿液混浊。 A cloudy appearance in the urine"The doctor noticed a slight nebula in my urine sample, which indicated I might be dehydrated. "医生注意到我的尿液样本里有轻微的尿浊，这可能表明我有些脱水。medicineappearanceChat with AIVocabulary GamePractice Reading
