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one of the simple squamous cells forming the lining of blood and lymph vessels and the inner layer of the endocardium.
endotheliocyte(ĕn″dŏ-thē′lē-ō-sīt″) [″ + ″ + kytos, cell]
An endothelial cell.
a large mononuclear phagocytic wandering cell of the circulating blood and tissues. Called also endothelial leukocyte.