Without blood or lymphatic vessels; may be a normal state as in certain forms of cartilage, or the result of disease. SYN: nonvascular.
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avas·cu·lar (')ā-'vas-kyə-lər adj having few or no blood vessels <the lens is a very \avascular structure> <\avascular necrosis>
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adj.
lacking blood vessels or having a poor blood supply. The term is usually used with reference to cartilage.
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avas·cu·lar (a-vasґku-lər) [a-1 + vascular] not supplied with blood vessels.Medical dictionary. 2011.