[dahy-uh-pi-dee-sis] 
| the passage of blood cells, esp. leukocytes, through the unruptured walls of the capillaries into the tissues. |
dēsis a leaping through, equiv. to diapēdē- (verbid s. of diapēdân to leap through) + -sis -sis 
[dahy-uh-pi-det-ik] , adjective | di·a·pe·de·sis (dī'ə-pĭ-dē'sĭs) n. pl. di·a·pe·de·ses (-sēz) The movement or passage of blood cells, especially white blood cells, through intact capillary walls into surrounding body tissue. [Greek diapēdēsis, transudation, from diapēdān, to ooze through : dia-, dia- + pēdān, to leap, throb; see ped- in Indo-European roots.] di'a·pe·det'ic (-dět'ĭk) adj. |
diapedesis di·a·pe·de·sis (dī'ə-pĭ-dē'sĭs)
n.
The movement or passage of blood cells, especially white blood cells, through intact capillary walls into surrounding body tissue. Also called migration.