1) Of the calf 2) Of the calf of the leg 3) Relating to the calf 
of, like or pertaining to the calf of the leg
• (a.) Of or pertaining to the calf of the leg; as, the sural arteries.
Su'ral adjective [ Latin sura the calf of the leg: confer French sural .] (Anat.) Of or pertaining to the calf of the leg; as, the sural arteries. 
Type: Term Pronunciation: sū′răl Definitions: 1. Denoting arteries, a nerve, a region, and veins of the calf of the leg.
adjective, Latin sura = the calf.
of or pertaining to the calf of the leg.