e/Erythrocyte aggregation

Information
has gloss	eng: Erythrocyte aggregation is the reversible clumping of these cells under low shear forces or at stasis. Erythrocytes aggregate in a special way, forming rouleaux. Rouleaux are stacks of erythrocytes which form because of the unique discoid shape of the cells in vertebrate body. The flat surface of the discoid RBCs give them a large surface area to make contact and stick to each other; thus, forming a rouleau. Rouleau formation takes place only in suspensions of RBC containing high-molecular, fibrilar proteins or polymers in the suspending medium. The most important protein causing rouleau formation in plasma is fibrinogen. RBC suspended in simple salt solutions do not form rouleaux.
lexicalization	eng: Erythrocyte aggregation
instance of	(noun) either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets corpuscle, blood corpuscle, blood cell