First Known Use: 1872
Dictionary
prosoma
noun pro·so·ma \(ˌ)prō-ˈsō-mə\
Definition of PROSOMA
: the anterior region of the body of an invertebrate (as an arachnid) especially when the segmentation is suppressed or obscured; especially : cephalothorax
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Origin of PROSOMA
New Latin, from Greek pro- + sōma body
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