subcardinal

adjective

sub·​cardinal

"+

: of, relating to, situated near, or being either of two veins in the mammalian embryo or the adult of some lower vertebrates that develop one on each side in the abdominal region ventromedial to the mesonephros and in the mammal participate in the formation of the inferior vena cava and the renal veins

Word History

Etymology

sub- + cardinal (vein)

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