sulcus of umbilical vein (medicine) and ratal (iou)

sulcus of umbilical vein (medicine)

sulcus of umbilical vein
<anatomy, vein> The sulcus on the foetal liver occupied by the umbilical vein.

Synonym: sulcus venae umbilicalis.

ratal (iou)

ratal noun. M19.
[from RATE noun1 + -AL1, prob. after rental.]
The amount on which rates are assessed.

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