nebula

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nebula nebular hypothesis

Main Entry: neb·u·la
Pronunciation: 'ne-by&-l&
Function: noun
Inflected Form(s): plural neb·u·lae /-"lE, -"lI /; also -las
Etymology: New Latin, from Latin, mist, cloud; akin to Old High German nebul fog, Greek nephelE, nephos cloud
1 : any of numerous clouds of gas or dust in interstellar space
2 : GALAXY 1b; especially : a galaxy other than the Milky Way galaxy -- not used technically
- neb·u·lar /-l&r/ adjective