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citrullus vulgaris
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a. a. milne
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guard
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acer negundo californicum
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reserve
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week by week
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creeds
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improvement
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concussive
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shooting
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concavo-concave
concavo-concave /ˌkɑnkəvoʊˈkɑnkəv/
adjective
-
Concave on both sides
(
biconcave
, concavo-concave
)
concave on both sides