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adelgidae
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prodigal
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throughout
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bases
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adducting
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ad-dahna desert
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concern
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addlehead
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propulsion
propulsion /prəˈpʌlʃən/
noun
-
The act of propelling
(
actuation
, propulsion
)
the act of propelling
-
A propelling force
(
propulsion
)
a propelling force