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adjutant bird
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nobility
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viciously
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boring
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absolver
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thurible
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faithful
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abo system
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concavo-concave
concavo-concave /ˌkɑnkəvoʊˈkɑnkəv/
adjective
-
Concave on both sides
(
biconcave
, concavo-concave
)
concave on both sides