nebula

名词 nebula:

1. a medicinal liquid preparation intended for use in an atomizer
2. cloudiness of the urine
3. an immense cloud of gas (mainly hydrogen) and dust in interstellar space
4. (pathology) a faint cloudy spot on the cornea

1. You can see nebulae in the clear summer sky.
   在晴朗的夏夜可以看到天上的星云。

neb.u.la

n.（名词）
【复数】 neb.u.lae[-lô.] 或 neb.u.las
Astronomy
【天文学】
A diffuse mass of interstellar dust or gas or both, visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation.
星云：星际空间的尘埃或气体或两者共同构成的巨大天体，由其对光线的吸收和反射来决定其明亮可见或黑暗一团
See galaxy
参见 galaxy
Pathology
【病理学】
A cloudy spot on the cornea.
角膜翳：角膜上微薄遮光点
Cloudiness in the urine.
溷浊：尿的颜色阴暗
A liquid medication applied by spraying.
喷雾剂：喷雾的液体制剂

来源：
Middle English nebule [cloud, mist]
中古英语 nebule [云，尘]
from Latin nebula * see nebh-
源自 拉丁语 nebula *参见 nebh-

【引伸】
neb.ular
adj.（形容词）