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protogroup
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English
edit
Etymology
edit
From
proto-
+
group
.
Noun
edit
protogroup
(
plural
protogroups
)
(
astronomy
)
A number of
galaxies
that become a
galaxy group
over time
Categories
:
English terms prefixed with proto-
English lemmas
English nouns
English countable nouns
en:Astronomy
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