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acris gryllus
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neither
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soothing
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accentual
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adana
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actinozoa
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active trust
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concavo-concave
concavo-concave /ˌkɑnkəvoʊˈkɑnkəv/
adjective
-
Concave on both sides
(
biconcave
, concavo-concave
)
concave on both sides