accrete
/əˈkɹit/
/əˈkɹit/
verb
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To grow together, combine; to fuse.
"Astronomers believe the Earth began to accrete more than 4.6 billion years ago."
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To adhere; to grow or to be added to gradually.
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To make adhere; to add; to make larger or more, as by growing.
adjective
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Characterized by accretion; made up
"accrete matter"
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Grown together