from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The movement or passage of blood cells, especially white blood cells, through intact capillary walls into surrounding body tissue.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The migration of blood cells (especially leucocytes) through the intact walls of blood vessels into the surrounding tissue
from the GNU version of the Collaborative International Dictionary of English
- n. The passage of the corpuscular elements of the blood from the blood vessels into the surrounding tissues, without rupture of the walls of the blood vessels.
from The Century Dictionary and Cyclopedia
- n. The oozing of the blood-corpuscles through the walls of the blood-vessels without visible rupture.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue
Of this malady, known in medical science by the term diapedesis, there have been examples recorded in both ancient and modern times.
[FN#214] This "diapedesis" of bloodstained tears is frequently mentioned in The Nights; and the "Bloody Sweat" is well-known by name.
Although there is some disagreement as to whether this process is similar to menstruation or diapedesis bleeding, there is visible bleeding in three to fifteen percent of all infants and hidden bleeding in twenty-five to seventy percent of all infants.
Corada M, Chimenti S, Cera MR, et al., Junctional adhesion molecule-A-deficient polymorphonuclear cells show reduced diapedesis in peritonitis and heart ischemia-reperfusion injury.
Fournier also mentions a curious case of diapedesis in a woman injured by a cow.
H2-calponin-free macrophages demonstrated a higher rate of proliferation and faster migration than that of h2-calponin-positive cells, consistent with a faster diapedesis of peripheral monocytes and neutrophils.
(1816-70; diapedesis of the red corpuscles of the blood, studies on nerve-fibres and ganglia, Waller's degeneration) and William Prout