extragalactic nebula
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extragalactic nebula Definition
(n) (
astronomy
)
a
collection
of
star
systems
;
any
of
the
billions
of
systems
each
having
many
stars
and
nebulae
and
dust
; "`
extragalactic
nebula
''
is
a
former
name
for
`
galaxy
''"
extragalactic nebula Synonyms
extragalactic nebula
galaxy
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