Any of several plant glycoproteins that bind to specific carbohydrate groups on the plasma membrane of cells,used in the laboratory to stimulate proliferation of lymphocytes and to agglutinate red blood cells.

• 植物凝血素任一种与细胞质膜上的特定碳水化合物结合的植物糖蛋白，在实验室中用来加速淋巴细胞的繁殖和红血细胞的凝结