• (a.) Around the blood vessels; as, perivascular lymphatics.
situated around a vessel.
Situated around a vessel. ... (18 Nov 1997) ... 
(per″e-vas´ku-lәr) around a vessel.
Per`i·vas'cu·lar adjective Around the blood vessels; as, perivascular lymphatics. 
Type: Term Pronunciation: per′i-vas′kyū-lăr Definitions: 1. Surrounding a blood or lymph vessel. Synonyms: circumvascular
perivascular Situated around or near a vessel or the tissues surrounding a blood vessel.