nebula

大学 FREQ #15440

n. 星云, 角膜云翳 [医] 薄翳; 角膜翳, 角膜云翳; 喷雾剂

发音

US /ˈnɛbjʊlə/

词形变化

nebulae 复数 nebulae nebulæ nebulas nebulas 复数 nebulæ 复数

教材释义与例句

名词

星云；角膜云翳

释义与例句

n.
  1. 1.

    A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes).

    星云

    天文
  2. 2.

    A white spot or slight opacity of the cornea.

    古体 医学
  3. 3.

    A cloudy appearance in the urine.

    废旧 医学

词汇关系

名词

上位词 10

spot cloud patch preparation symptom fleck formulation dapple maculation speckle

下位词 1

planetary nebula

相关短语

Great Nebula in Andromeda planetary nebula nucleus planetary nebula nuclei Orion Nebula planetary nebula 行星状星云 reflection nebula dark nebula preplanetary nebula protoplanetary nebula solar nebula radio nebula white nebula spiral nebula n. 螺旋星云, 旋涡星云 absorption nebula emission nebula

词源

Borrowed from Latin nebula (“little cloud, mist”). Akin to Ancient Greek νεφέλη (nephélē, “cloud”), German Nebel (“mist, nebula”), Old Norse nifl, Polish niebo (“sky, heaven”), Russian не́бо (nébo, “sky”).

来源：wiktionary