What is the meaning of Nebula?
A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes).
A white spot or slight opacity of the cornea.
A cloudy appearance in the urine.
Synonym of tähtisumu
fog, mist, haze
nebula
fog, mist; cloud
nebula
fog
cloud
vapor
nebula
Source: wiktionary.org