antecosta

noun an·te·cos·ta \ ˈantə̇ˌ- , -tē- \

Definition of antecosta

plural antecostae or antecostas
:the internal ridge that is externally manifested as a groove, that appears near the anterior margin of the typical dorsal or ventral plate of the primitive segment of an arthropod, and that provides attachment for the longitudinal muscles

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Origin and Etymology of antecosta

New Latin, from ante- + costa


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