• (a.) Destitute of vessels; non-vascular. • (a.) Outside the vessels; -- said of the substance of all the tissues.
situated or occurring outside a vessel or the vessels.
Situated or occurring outside a vessel or the vessels. ... (18 Nov 1997) ... 
(eks″trә-vas´ku-lәr) situated or occurring outside a vessel or the vessels.
Ex`tra·vas'cu·lar adjective (Anat.) (a) Outside the vessels; -- said of the substance of all the tissues. (b) Destitute of vessels; non-vascular. 
Type: Term Pronunciation: eks′tră-vas′kyū-lăr Definitions: 1. Outside the blood vessels or lymphatics or of any special blood vessel.
extravascular 1. Outside of blood or lymph vessels; not contained in the body's blood or lymph vessels. 2. Located or occurring outside a blood or lymph vessel.
situated outside a blood vessel or vessels.