D defs.my
Entry 1 sense Webster, 1913

Nummulation

· Num·mu·la·tion · IPA
01 n. 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.
  1. 1.
    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.(Physiol.)