phleboedesis

noun

phleb·​oe·​de·​sis

ˌflebēˈdēsə̇s

plural -es

: the condition of having the terminal parts of the vascular system so expanded as to largely obliterate the coelom which is replaced by a hemocoel (as in arthropods and mollusks)

Word History

Etymology

New Latin, from phleb- + Greek oidēsis swelling

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