The Collaborative International Dictionary
Nummulation
Nummulation \Num`mu*la"tion\, n. (Physiol.) The arrangement of the red blood corpuscles in rouleaux, like piles of coins, as when a drop of human blood is examined under the microscope.
Wiktionary
nummulation
n. (context physiology English) The arrangement of the red blood corpuscles in rouleaux, like piles of coins, as when a drop of human blood is examined under the microscope.