How to sign: (nontechnical usage) a tiny piece of anything
Similiar / Same: particle, mote, atom, molecule, speck
Within this category: chylomicron, flyspeck, grain
How to sign: either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
Similiar / Same: blood cell, blood corpuscle
Categories: somatic cell, vegetative cell
Within this category: leukocyte, packed cells, red blood cell