precaval
/priːˈkeɪvl/Anatomy and Zoology
adjective
Of, relating to, or designating a cranial vena cava (in many mammals, the unpaired superior vena cava).
noun
A precaval vein.
Origin
Mid 19th century; earliest use found in Richard Owen (1804–1892), comparative anatomist and palaeontologist. From pre- + cava + -al.