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prosoma

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noun pro·so·ma \ (ˌ)prō-ˈsō-mə \

Definition of prosoma

:the anterior region of the body of an invertebrate (such as an arachnid) especially when the segmentation is suppressed or obscured; especially :cephalothorax

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Origin and Etymology of prosoma

New Latin, from Greek pro- + sōma body

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