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| ster·num [ stúrnəm ] (plural ster·nums or ster·na [ stúrnə ]) |
noun |
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1.
(
technical
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Same as breastbone
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2. arthropod's abdominal covering: the chitinous ventral plate covering the abdomen of an arthropod
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| [Mid-17th century. Via modern Latin< Greek sternon "breastbone"] |
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 ster·nal adjective |
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