词根词缀：-itis

【来源及含义】Greek: a suffix; inflammation, burning sensation; by extension, disease associated with inflammation

【相关描述】This suffix has come to mean "inflammation of" but originally it meant "pertaining to" or "of the". The Greek word nosos ["disease"] was either expressed or understood, although it might not be included with the basic element. For example, bursitis nosos would mean "disease of the bursa".

【同源单词】actilnoneuritis, adenitis, adrenalitis, allergyrhinitis, angioitis, angiopancreatitis

词根词缀：myelin-, myelino-

【来源及含义】Greek: lipoid substance (containing or resembling fat) sheathing certain nerve fibers; lipoid substance found in body tissue

【同源单词】demyelination, dysmyelination, leukomyelitis, myelin, myelinated, myelination

词根词缀：myelo-, myel-

【来源及含义】Greek: bone marrow; the spinal cord and medulla oblongata; the myelin sheath of nerve fibers

【同源单词】amyelencephalia, amyelia, amyeloneuria, amyelotrophy, multiple myeloma, myelin

词根词缀：polio-

【来源及含义】Greek: gray; pertaining to the "gray matter" of the nervous system, brain, and the spinal cord

【同源单词】dyspigmentation, poliocidal, polioclastic, poliodystrophia, polioencephalitis, polioencephalomalacia