noun neb·u·la \ˈne-byə-lə\

: a cloud of gas or dust in space that can sometimes be seen at night

: a group of stars that are very far away and look like a bright cloud at night

plural neb·u·lae\-ˌlē, -ˌlī\ also neb·u·las

Full Definition of NEBULA

:  any of numerous clouds of gas or dust in interstellar space
:  galaxy 1b; especially :  a galaxy other than the Milky Way galaxy —not used technically
neb·u·lar \-lər\ adjective

Origin of NEBULA

New Latin, from Latin, mist, cloud; akin to Old High German nebul fog, Greek nephelē, nephos cloud
First Known Use: 1718
NEBULAE Defined for Kids


noun neb·u·la \ˈne-byə-lə\
plural neb·u·lae \-ˌlē\ or neb·u·las

Definition of NEBULA for Kids

:  any of many clouds of gas or dust seen in the sky among the stars
:  galaxy 2
Medical Dictionary


noun neb·u·la \ˈneb-yə-lə\
plural neb·u·las or neb·u·lae \-ˌlē, -ˌlī\

Medical Definition of NEBULA

:  a slight cloudy opacity of the cornea


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July 04, 2015
stringent Hear it
rigorous, strict, or severe
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