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opiliones
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long whist
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richler
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base
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induce
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whin
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acoustic projection
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narrowness
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enchanting
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unapologetic
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concavo-concave
concavo-concave /ˌkɑnkəvoʊˈkɑnkəv/
adjective
-
Concave on both sides
(
biconcave
, concavo-concave
)
concave on both sides