Nummulation

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.
     [1913 Webster]