髄 - marrow, pith, essence

essence; quintessence; spirit; soul; heart; pith (and marrow)

bone marrow; medulla

spinal cord

bacterial meningitis

septic meningitis; purulent meningitis; suppurative meningitis

meningococcal meningitis; cerebrospinal meningitis

enzuigiri (attack that strikes the back of the head)

pulp cavity

medulla oblongata

pulp (of a tooth); dental pulp

cerebrospinal fluid

myeloma