Wordnet 3.0
NOUN (1)
1.
the innermost membrane of an organ (especially the inner lining of an artery or vein or lymphatic vessel);
The Collaborative International Dictionary of English v.0.48:
intima \intima\ n. (Anat.)
the innermost coat of an organ, such as a blood vessel. It
usually consists of an endothelial layer of cells, backed by
connective tissue and elastic tissue.
[PJC]
WordNet (r) 3.0 (2006):
intima
n 1: the innermost membrane of an organ (especially the inner
lining of an artery or vein or lymphatic vessel)